Analogy answers the question every legal system faces: what happens when the texts run out. A jurist identifies the operative cause behind a known ruling, finds that cause present in a new case, and extends the ruling to it. Al-Shafii made the method explicit and closed the list of sources at four, the Quran, the Sunnah, consensus and analogy, and the later Sunni schools argued inside that settlement rather than against it. The Hanafi school applies analogy widely and tempers it with juristic preference; the Hanbali school admits it but prefers a weak report from a Companion to a jurist's own reasoning. Outside Sunnism the method is refused. Zahiri jurists rejected it as a human addition to a complete law. Jafari jurisprudence puts reason in its place, citing a report from Jafar al-Sadiq that religion is not reached by analogy. The disagreement is not about whether law must be extended but about who is entitled to do the extending.
Facts
Structure
StructureFour elements: an original case settled by a text, a new case, a ruling attached to the original, and the operative cause common to both. The jurist identifies the cause behind the known ruling, finds it present in the new case, and extends the ruling to it. 1 Position Profile
Principal ProponentAl-Shafii, who made the method explicit and closed the list of sources at four, the Quran, the Sunnah, consensus and analogy. 3 Principal CriticZahiri jurists, who rejected it as a human addition to a law already complete; Jafari jurisprudence refuses it as a source in its own right, citing a report from Jafar al-Sadiq that religion is not reached by analogy. 1 Origins
Held ByThe four Sunni schools, though with markedly different appetite: the Hanafi school applies it widely and tempers it with juristic preference, while the Hanbali school admits it but prefers a weak report from a Companion to a jurist's own reasoning. 1 Origin of the NameArabic qiyas, measuring one thing against another. 1Tradition: Arabic Doctrinal category (class)Sourced to the subject's own account Status
Status Within the TraditionStandard teaching, not formally defined 1Tradition: Sunni Status Within the TraditionRejected, or not held, within this tradition 1Tradition: Shia Islam Standing as a Comparative CategoryA standard analytic category in the study of religion 2 Doctrinal Category Disputed
Point in DisputeNot whether the law must be extended beyond the texts, which all sides concede, but who is entitled to do the extending and on what warrant, a question live since al-Shafii made the method of analogy explicit and closed the list of sources at four; Mohammad Hashim Kamali's Principles of Islamic Jurisprudence (Islamic Texts Society, 2003) surveys the schools' competing answers. 1 Learn More
The Operative Cause and Why the Schools Bound Analogy Differently
Al-Shafii's achievement was not inventing analogy, jurists had reasoned from precedent before him, but closing the list of sources at four and making analogy the last and most disciplined of them, subordinate to text and consensus rather than a free standing method a judge could reach for whenever a text ran short. His Risala set out the operative cause, the illa, as the hinge the whole method turns on: a jurist does not simply notice that two cases resemble each other, he must identify the specific legal reason behind the original ruling and show that reason present in the new case, so that reasoning by resemblance is anchored to the law's own stated rationale rather than to human intuition about likeness.
The later schools built precise systems around finding that reason. Hanafi jurisprudence developed the companion method of istihsan, a preference the jurist can invoke to depart from a strict analogy when a stronger, if less obvious, textual or equitable ground supports it, a move Shafii jurists have long criticized as smuggling personal judgment back into a method built to exclude it. The Zahiri school went further still, rejecting analogy entirely on the ground that God's law is either stated or silent, and a jurist who extends it by inference is legislating rather than interpreting.
Connections
Attributed To
Belongs to Tradition
The Hanafi school admits analogical reasoning as a source after the Quran, the Sunnah and consensus, and applies it more freely than the other Sunni schools.
Source The Formation of the Sunni Schools of Law, 9th-10th Centuries C.E.Christopher Melchert
Analogy is admitted in the Hanbali school but used sparingly, since Ibn Hanbal preferred a weak report from a Companion to a jurist's own reasoning.
Source The Formation of the Sunni Schools of Law, 9th-10th Centuries C.E.Christopher Melchert
Analogy is accepted in the Maliki school, but it yields to the practice of Medina where the two conflict.
Source Principles of Islamic JurisprudenceMohammad Hashim Kamali
Al-Shafii made analogy the fourth and last source and closed the list at four, the Quran, the Sunnah, consensus and analogy, which is the settlement the later Sunni schools argued inside.
Source Al-Risala fi Usul al-FiqhMuhammad ibn Idris al-Shafii
Critiqued By
Jafari jurisprudence rejects analogy as a source, on a report from Jafar al-Sadiq that religion is not reached by analogy, and puts reason (aql) in the place the Sunni schools give it.
Source Sharai al-Islam fi Masail al-Halal wal-HaramNajm al-Din al-Muhaqqiq al-Hilli
Quranism, Denominations Quranist argument rejects analogy along with the rest of the classical apparatus, holding the Quran to be complete and self-sufficient.
Source Hadith as Scripture: Discussions on the Authority of Prophetic Traditions in IslamAisha Y. Musa
Positions on This Question
Analogy is accepted in Salafi legal theory, defended by Ibn Taymiyya against those who rejected it, though the movement subordinates it firmly to the texts.
Source Ibn Taymiyya (Makers of the Muslim World)Jon Hoover
Analogy is the fourth root in all four Sunni schools, and the instrument by which a settled case reaches an unsettled one through the reason behind the ruling.
Source Principles of Islamic JurisprudenceMohammad Hashim Kamali
Sources
1. Principles of Islamic Jurisprudence
2. Hadith as Scripture: Discussions on the Authority of Prophetic Traditions in Islam
3. The Canonization of Islamic Law: A Social and Intellectual History
4. Al-Risala fi Usul al-Fiqh
Muhammad ibn Idris al-Shafii, 820
Sharai al-Islam fi Masail al-Halal wal-Haram
Najm al-Din al-Muhaqqiq al-Hilli, 1277
The Formation of the Sunni Schools of Law, 9th-10th Centuries C.E.
Qiyas (Wikipedia)
Attributed To: Abu Hanifa, Sunni interpretationsQuote, Attributed To: Abu Hanifa, Sunni interpretations
While Muslim scholarship in the later period traditionally claimed that analogy had existed in Islamic jurisprudence since their religion's inception, modern scholarship generally points to Muslim scholar Abu Hanifa as the first to incorporate analogical reason as a secondary source of law.
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