Introduction: The Methodology of Comparative Fiqh

Bidayat al-Mujtahid wa Nihayat al-Muqtasid — often cited simply as Bidayat al-Mujtahid — is the masterwork of Abu al-Walid Muhammad ibn Ahmad ibn Rushd al-Hafid (520–595 AH / 1126–1198 CE), known in the Western tradition as Averroes. Ibn Rushd was born in Córdoba, al-Andalus (present-day Spain), into one of the most distinguished scholarly families of the Islamic West. His grandfather, Ibn Rushd al-Jadd, was the chief qadi (judge) of Córdoba and a major Maliki jurist. His father was similarly accomplished. Ibn Rushd the grandson absorbed this legal tradition while also becoming the foremost Islamic philosopher and commentator on Aristotle of his era.

Bidayat al-Mujtahid is a work of comparative Islamic jurisprudence unlike any other. It does not simply present the rulings of one school; it systematically surveys the major legal questions of Islamic law, identifies where the Sunni schools agree and where they differ, traces each position to its underlying textual and methodological basis, and analyzes which argument is strongest. The title itself is revealing: the beginning for the one who exercises independent legal reasoning (mujtahid), and the end sufficient for the one who follows a school (muqtasid).

Ibn Rushd's methodology in the book is straightforward but demanding. For each legal question, he states the point of agreement among scholars (if any), then presents the points of difference. For each differing position, he identifies the scholars who hold it, the textual or methodological basis for it, and why the differences arose. The causes of scholarly disagreement are identified systematically: differences in the authenticity of a hadith, differences in understanding an ambiguous Quranic term, differences in whether a particular hadith abrogates another, or differences in the principles of legal analogy.

This analytical approach makes Bidayat al-Mujtahid an essential introduction to the rational structure of Islamic legal disagreement. Scholarly differences in fiqh are not arbitrary — they arise from principled interpretive choices made by learned men working seriously with the same sources. By exposing these roots, Ibn Rushd enables the reader to evaluate legal questions for themselves rather than merely memorizing which school holds what position.

The book is organized according to the classical sequence of Islamic legal topics, moving from ritual purity through worship, then commercial law, family law, criminal law, and judicial procedure. The coverage is not exhaustive — some topics receive more attention than others — but across the whole, it provides a panoramic view of classical Islamic jurisprudence at the height of its sophistication.

Ibn Rushd lived and worked during the Almohad period in al-Andalus and North Africa, a time when Islamic civilization in the West was politically turbulent but intellectually vibrant. His philosophical works went on to transform European scholasticism through their Latin translations. Bidayat al-Mujtahid influenced Islamic legal scholarship for centuries and remains today one of the most widely studied works of comparative fiqh in both traditional madrasas and modern Islamic universities.