Da'aim ul Islam

Da'aim ul Islam, literally - Pillars of Islam - is a book authored by Al Qadi Abu Hanifah al Noman bin Mohammad al Tamimi on the directive of Caliph Imam Al Mu'izz Li Deenillah (AS), the fourteenth Imam of Ismaili Shias and the fourth Caliph Imam of the Fatimid Dynasty. It is an exhaustive piece of literal and legal work which covers nearly all aspects of Fatimid jurisprudence making this book the main source of laws and regulations which governed the eventual Fatimid State. The book remains as the main source of jurisprudence for Ismaili Shias and Dawoodi Bohras (including sects and sub-sects)spread across the world.