Disagreements of the Jurists

A Manual of Islamic Legal Theory

448 pages

January, 2015

ISBN: 9780814763759



Also available in


Al-Qadi al-Nuʿman (d. 364 H/974 AD) was born in Tunisia and joined the service of the Fatimids in 313 H/925 AD, eventually rising to the position of supreme judge. As the most important jurist and legal author of the Fatimid Empire, his work founded Ismaʿili law as a discipline.

All books by al-Qadi al-Numan

Devin J. Stewart is Associate Professor of Arabic and Islamic Studies at Emory University. He has written on the Quran, Shii Islam, and Islamic legal education.

All books by Devin Stewart

Al-Qadi al-Nuʿman was the chief legal theorist and ideologue of the North African Fatimid dynasty in the tenth century. This translation makes available in English for the first time his major work on Islamic legal theory, which presents a legal model in support of the Fatimids’ principle of legitimate rule over the Islamic community. Composed as part of a grand project to establish the theoretical bases of the official Fatimid legal school, Disagreements of the Jurists expounds a distinctly Shiʿi system of hermeneutics, which refutes the methods of legal interpretation adopted by Sunni jurists.
The work begins with a discussion of the historical causes of jurisprudential divergence in the first Islamic centuries, and goes on to address, point by point, the specific interpretive methods of Sunni legal theory, arguing that they are both illegitimate and ineffective. While its immediate mission is to pave the foundation of the legal Ismaʿili tradition, the text also preserves several Islamic legal theoretical works no longer extant—including Ibn Dawud’s manual, al-Wusul ila maʿrifat al-usul—and thus throws light on a critical stage in the historical development of Islamic legal theory (usul al-fiqh) that would otherwise be lost to history.  


  • “This book will be useful especially to those who are interested in the history of law and secondarily those who are interested in the history of the Fa?imids.”