Fiqh, the discipline of Islamic jurisprudence, is the practical engine of Muslim life. Salah, fasting, zakah, marriage, business, halal eating, inheritance, every action that has a ruling in Islam falls within its scope. For Muslims in the UK and across the world, understanding fiqh is what turns “this is what Muslims do” into “this is why, on what evidence, and how to act when situations get complex.”
This guide covers two distinct but complementary frameworks that classical scholars built around fiqh:
- The Ten Principles (al-Mabādi al-ʿAshara): a structural framework for introducing any Islamic science. It tells you what fiqh is, where it came from, what it covers, and how to study it.
- The Five Universal Maxims (al-Qawāʿid al-Fiqhiyya al-Kubrā): five legal principles that sit above thousands of specific rulings and guide how scholars derive answers to new questions.
These are different things, often confused. The Ten Principles are about understanding the field. The Five Maxims are about applying the field. Both are essential.
Part One: The Ten Principles of Fiqh (al-Mabādi al-ʿAshara)
Classical Muslim scholars used a standard ten-principle framework to introduce any branch of knowledge, including fiqh, hadith, tafsir, and Arabic grammar. Knowing these ten lets a student place fiqh within the wider intellectual map of Islam.
1. Definition
The Arabic word fiqh (فقه) literally means “deep understanding.” Technically, scholars define it as “knowledge of practical Shariah rulings derived from detailed evidences.” Three words carry the weight: practical (it covers actions, not creed), derived (rulings come from textual evidence, not personal opinion), and detailed (each ruling is traceable to a specific source).
2. Subject Matter
Fiqh concerns the actions of the mukallaf, the legally accountable Muslim. Every such action receives one of five legal classifications:
| Classification | Arabic | Example |
|---|---|---|
| Obligatory | Fard / Wajib | The five daily prayers |
| Recommended | Mandub / Sunnah | Praying tahajjud at night |
| Permissible | Mubah | Eating any halal food |
| Disliked | Makruh | Wasting water in wudu |
| Forbidden | Haram | Riba (interest-bearing transactions) |
3. Purpose
Fiqh exists to give Muslims a clear, evidence-based answer to the question “what should I do?” in every domain of life. Worship, business, family, ethics, public life, all of it.
4. Virtue
The Prophet Muhammad ﷺ said: “If Allah intends good for someone, He gives him understanding of the religion.” (Sahih al-Bukhari 71, Sahih Muslim 1037). The Arabic word for “understanding” in this hadith is yufaqqihhu, the same root as fiqh. Scholars across centuries treated this as a direct endorsement of fiqh study.
5. Relation to Other Sciences
Fiqh sits in the middle of a wider scholarly ecosystem:
- Usul al-Fiqh: the methodology for deriving fiqh rulings from sources.
- Aqeedah: belief and creed, which fiqh assumes but does not address directly.
- Hadith and Tafsir: primary sources fiqh draws from.
- Arabic grammar: the linguistic tool without which the sources cannot be read accurately.
6. Founders and the Four Madhhabs
While Allah ﷻ is the ultimate legislator, four scholars formalised fiqh into the schools (madhhabs) followed today:
- Imam Abu Hanifa (d. 150 AH): the Hanafi school
- Imam Malik ibn Anas (d. 179 AH): the Maliki school
- Imam al-Shafiʿi (d. 204 AH): the Shafiʿi school
- Imam Ahmad ibn Hanbal (d. 241 AH): the Hanbali school
Each school draws from the same sources (Qur’an, Sunnah, ijmaʿ, qiyas) with nuanced methodologies. A Muslim following one school is following classical, rigorous scholarship, not a sect.
7. Name of the Science
Fiqh is also called the science of halal and haram, practical Islamic law, and applied Shariah. It is distinct from ʿIlm al-Kalam (Islamic theology), which deals with creed rather than action.
8. Sources
| Source | What It Provides |
|---|---|
| Qur’an | The divine foundation. Allah ﷻ commanded: “So [Prophet] judge between them according to what God has sent down” (al-Ma’idah 5:49, trans. Abdel Haleem). |
| Sunnah | The Prophet’s ﷺ sayings, actions, and tacit approvals. The Qur’an itself instructs obedience to the Messenger (an-Nisa 4:59). |
| Ijmaʿ | Consensus of qualified scholars, especially the companions. |
| Qiyas | Analogy from an established ruling to a new case with the same underlying cause. |
| Istihsan, Istislah, ʿUrf | Secondary tools used by specific schools (juristic preference, public interest, customary practice). |
9. Ruling on Studying Fiqh
Two levels of obligation apply:
- Fard ʿAyn: every Muslim must learn the fiqh of what they personally do, prayer, fasting, wudu, halal earnings, marriage when about to marry, and so on.
- Fard Kifayah: deeper specialisation (inheritance law, judicial rulings, complex finance) is a communal obligation. Enough qualified people must exist; if not, the whole community is held accountable.
10. Issues and Categories
| Category | What It Covers |
|---|---|
| ʿIbadat (Worship) | Salah, fasting, zakah, hajj, purification |
| Muʿamalat (Transactions) | Buying, selling, leasing, partnerships, halal finance |
| Munakahat (Family Law) | Marriage, divorce, custody, inheritance |
| Jinayat (Criminal Law) | Theft, harm, prescribed punishments |
| Qada (Judiciary) | Witnesses, evidence, contracts, dispute resolution |
The ten principles above are what a teacher covers before a single ruling is discussed. Learning them from a page is straightforward. Learning to apply them to a case of your own is not, which is why fiqh has always been transmitted through a teacher rather than a text. Take a free trial lesson in Islamic Studies and put a question of your own to one.
Part Two: The Five Universal Maxims (al-Qawāʿid al-Fiqhiyya al-Kubrā)
If the Ten Principles are the map of fiqh as a field, the Five Maxims are the compass scholars use to navigate it. These five legal principles, compiled most famously in Imam al-Suyuti’s al-Ashbah wa al-Naẓa’ir, are agreed upon across all four Sunni madhhabs. Together they govern thousands of specific rulings and remain the framework for answering modern questions.
Maxim 1: Actions Are Judged by Intentions (al-Umuru bi-Maqaṣidiha)
Arabic: الأمور بمقاصدها. Source: the Prophet ﷺ said, “Actions are but by intentions, and every man shall have only what he intended.” (Sahih al-Bukhari 1, Sahih Muslim 1907).
Worked example: A Muslim gives money to a relative in financial trouble. If the intention is sadaqah (charity), it counts as worship and earns reward. If the intention is repaying a loan, it discharges a debt: it is not sadaqah and cannot be counted as charity or zakah. Same physical action, different ruling, because of niyyah.
Maxim 2: Certainty Is Not Removed by Doubt (al-Yaqinu La Yazulu bi-l-Shakk)
Arabic: اليقين لا يزول بالشك. Source: a man asked the Prophet ﷺ about someone who thought he had passed wind during the prayer, and he said the man should not leave the prayer unless he hears a sound or perceives a smell (Sahih Muslim 361; also Sahih al-Bukhari 137).
Worked example: Mid-prayer, you wonder whether you broke wudu by passing wind. You are not sure. The maxim says: stick with what you were certain about (you had wudu), and ignore the doubt. Continue the prayer.
Maxim 3: Hardship Brings Ease (al-Mashaqqatu Tajlibu al-Taysir)
Arabic: المشقة تجلب التيسير. Source: “God wants ease for you, not hardship” (al-Baqarah 2:185, trans. Abdel Haleem).
Worked example: A traveller may shorten the four-rakʿah prayers (Dhuhr, ʿAsr, ʿIsha) to two. The Maliki, Shafiʿi and Hanbali schools also allow combining prayers on the road; the Hanafi school allows combining only at ʿArafah and Muzdalifah during Hajj (Dar al-Ifta fatwa 12466). A sick person who cannot fast in Ramadan makes up the days later; someone whose illness is chronic, with no hope of recovery, pays fidyah (feeding a poor person for each day) instead (Dar al-Ifta fatwa 4510). Hardship triggers a concession the original ruling did not allow.
Maxim 4: Harm Must Be Removed (al-Ḍararu Yuzal)
Arabic: الضرر يزال. Source: the Prophet ﷺ said, “There should be neither harming nor reciprocating harm” (40 Hadith an-Nawawi 32, graded hasan by al-Nawawi, who notes that its chains strengthen one another; the chain of Sunan Ibn Majah 2341 on its own is graded da’if by Darussalam).
Worked example: A Muslim is in a contract that causes ongoing financial harm or unjust enrichment. Even if the original contract met the technical conditions, fiqh permits and sometimes obligates dissolving it to remove the harm. The same principle underlies rulings on environmental harm, harmful workplace conditions, and exploitative debt.
Maxim 5: Custom Is Authoritative (al-ʿAdatu Muḥakkamah)
Arabic: العادة محكمة. Source: jurists such as al-Walātī cite the verse “command what is right” (al-Aʿraf 7:199, trans. Abdel Haleem), where the Arabic word is al-ʿurf, although al-Wasīṭ explains it there as what the Shariah knows to be good. They also cite the Prophet’s ﷺ words to Hind bint ʿUtbah about her household’s needs: “Take what is sufficient for you and your children, and the amount should be just and reasonable” (Sahih al-Bukhari 5364; see islamweb fatwa 27000).
Worked example: What counts as a “reasonable” delivery time in a sales contract, the proper amount of mahr, or “appropriate dress” in a given society, is determined by the prevailing custom (ʿurf) of that community, as long as the custom does not violate clear Shariah principles. This is why fiqh adapts to the UK, Indonesia, Egypt, and Senegal without losing its core.
How the Two Frameworks Work Together
A worked case: a Muslim in the UK is offered a job at a company that primarily handles halal investment funds but occasionally processes interest-bearing instruments. Is it permissible to work there?
- Ten Principles tell us: this falls under Muʿamalat (transactions), category #10. Sources to consult: Qur’an’s prohibition on riba (al-Baqarah 2:275), Sunnah on assisting in sin, and published fatwas on working for companies with mixed activities.
- Five Maxims tell us: Intentions matter (is the work itself sin or does it merely facilitate sin?). Hardship brings ease may apply if there is no halal alternative income. Harm must be removed requires assessing whether direct involvement in riba causes ongoing personal or societal harm. Custom determines what counts as “primary” vs “incidental” involvement.
A qualified scholar uses both frameworks together to reach a ruling. The Ten Principles structure the question; the Five Maxims provide the operating logic.
Practical Applications for Muslims in the UK
Fiqh is not theory. It governs daily decisions Muslims living in the UK face:
- Islamic finance: home purchase plans, halal mortgages, zakah on stocks and pensions, interest-free banking.
- Family law: nikah recognition under UK law, civil and Islamic divorce alignment, custody, inheritance distribution.
- Healthcare ethics: end-of-life decisions, organ donation, medical procedures during fasting or hajj.
- Halal food: certification standards, restaurant verification, supermarket meat sourcing.
- Workplace and community: prayer accommodation, halal earnings, mosque administration, Islamic charity governance.
Each of these benefits from the Five Maxims framework: intention, certainty, ease, harm removal, custom. Each maps onto a specific category in the Ten Principles.
How to Begin Studying Fiqh
For a beginner, a sequenced approach works best:
- Start with personal fard ʿayn: the fiqh of salah, wudu, fasting, and zakah at minimum.
- Pick a madhhab to follow consistently: not because the others are wrong, but because internal coherence comes from depth, not breadth.
- Study under a teacher: self-study without correction produces confusion. A teacher answers the questions you didn’t know you should ask.
- Learn the Five Maxims early: they give you the analytical tools to understand why a ruling is what it is.
- Move into Muʿamalat and family law: the everyday domains where modern Muslims most need clarity.
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The first two lessons cost nothing and are taught by two different teachers, so you can choose whose explanation you follow most easily. Book a free trial Islamic Studies lesson.
Related Guides
- The Importance of Seeking Knowledge in Islam: why ilm is fard on every Muslim.
- The Importance of Arabic in Islam: Arabic is the linguistic foundation fiqh rests on.
- Sciences of the Qur’an: the disciplines that illuminate revelation.
- Islam as a Holistic Life: how fiqh integrates with creed, character, and community.
- Study Islamic Studies Online: structured Islamic education from home.
Frequently Asked Questions
What is the difference between the Ten Principles and the Five Maxims?
The Ten Principles (al-Mabādi al-ʿAshara) are a framework for introducing and structuring any Islamic science. They tell you what fiqh is, where it came from, and how to study it. The Five Maxims (al-Qawāʿid al-Fiqhiyya al-Kubrā) are five operating principles scholars use to derive specific rulings: intention, certainty, ease, harm removal, and custom. The first describes the field; the second applies it.
Do I need to follow a specific madhhab?
Following one of the four classical schools (Hanafi, Maliki, Shafiʿi, Hanbali) gives you a coherent methodology and a chain of rigorous scholarship. Dar al-Ifta al-Misriyyah states that a layperson is not required to adhere to one school and may follow any of the recognised schools, as long as they do not pick the easiest ruling from each school to suit personal preference (Dar al-Ifta fatwa 16576). The four schools differ in details, not in fundamentals.
What is the difference between Fiqh and Shariah?
Shariah is the divine path revealed by Allah ﷻ, the totality of Islamic guidance. Fiqh is the human scholarly effort to understand and apply that guidance. Shariah is fixed; fiqh is interpretive and develops over time as scholars apply unchanging principles to changing circumstances.
Are the Five Maxims found in the Qur’an and Sunnah directly?
Each of the five is rooted in direct textual evidence. “Actions by intentions” is a famous Prophetic hadith. “Hardship brings ease” comes directly from al-Baqarah 2:185. “No harm” is a Prophetic statement (graded hasan by al-Nawawi, 40 Hadith 32). Scholars then synthesised these texts into the universal maxims that govern thousands of specific rulings.
Why is fiqh still relevant for Muslims today?
Every Muslim faces daily questions, in finance, family, work, health, food, that fiqh addresses with evidence-based reasoning. The Five Maxims in particular are precisely the tools needed to apply Islamic principles to situations the early scholars never encountered. Modern fiqh councils draw on these maxims, alongside the Qur’an, Sunnah and usul al-fiqh, when they address new questions such as cryptocurrency, medical procedures and online business.
Where can I learn fiqh online with structured guidance?
Through structured online academies offering live teachers, sequenced curricula, and qualified scholars. Quranic Mind’s Islamic Studies course is built specifically for English-speaking learners and includes fiqh foundations, with two free trial classes before commitment.
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