• The Tathbit al-imamainfo-icon attributed to the Fatimid Imaminfo-icon-Caliphinfo-icon al-Mansur (334–341/946–953) is an important early Ismaili treatise on the legitimacy of the Imamateinfo-icon of ʿAli b. Abi Talib and that of the Ismaili Imams from among his progeny. As one of the earliest Ismaili works on this crucial and fundamental Shiʿi subject it can thus be considered a major treatise on the doctrine of the Imamate.

    The Tathbit al-imama does not deal with the metaphysical significance of the imamate. Rather, it concentrates on its legal and historical aspects, using proofs derived from the Qurʾan, hadithinfo-icon and logical arguments. In this regard, it is directed at the Islamic public in all its different religious affiliations.

    In the way it discusses the necessity of the Imamate itself, the right of the Imams to the vicegerency of Prophet Muhammad, and the validity of Divine designation in contrast to election by the ummainfo-icon, it is likely that the Tathbit al-imama could have also meant to serve as a guide book for the Ismailis in legitimising the ʿAlid state ruled by the Fatimid Imam-Caliphs.

    This edition has been compiled from two manuscripts of the Tathbit, both of which are now in the collections of the library of The Institute of Ismaili Studies, with the Arabic text carefully translated into idiomatic English to retain the character and flavour of the original text as much as possible.

    Table of Contents
    An Editorial Note
    Acknowledgements xiii
    Introduction 1
    Translation of the Tathbit al-imamainfo-icon 13
    Select Bibliography 121
    English Index 123
    Arabic Text  


  • Sami Makarem

    Professor Sami Makarem obtained a BA in Literature and Philosophy in 1954 which was followed by an MA in Arabic Literature in 1957, both from the American University in Beirut. Professor Makarem obtained his PhD in Middle Eastern Studies from the University of Michigan in 1963. A prolific author, Professor Makarem wrote over twenty books including The Doctrine of the Ismailis (1972) andThe Druze Faith (1974). He passed away in August 2012.Read more