Universities teaching courses on Shi’i Islam, Islamic law, or Fatimid history require primary sources. The Fyzee translation is a standard text in PhD reading lists.
Prior to this codification, Ismaili law was transmitted through scattered treatises and the oral instructions of the Imams. Da‘a’im al-Islam was written to resolve legal ambiguities and to distinguish the Ismaili position from the dominant Sunni schools (Hanafi, Shafi‘i, Maliki) and the Twelver Shi‘i school. The text was officially endorsed by Imam al-Mu‘izz, who famously declared, "We have looked into it and found it to be in accordance with the truth." Daim Al-islam English Pdf
Al-Ahkam al-Nu’maniyya is a later abridgment of Daim al-Islam by the same author. It is shorter but covers similar topics. No full English translation exists yet. Universities teaching courses on Shi’i Islam, Islamic law,
In the vast ocean of Islamic literature, few texts hold as much authoritative weight for the and Musta’li Ismaili communities as Daim al-Islam (دعائم الإسلام), meaning “The Pillars of Islam.” Written over a thousand years ago by the illustrious Qadi al-Nu’man, this book remains the primary source of Fatimid jurisprudence (al-Fiqh al-Fatimi). No full English translation exists yet
The book is unique for its heavy emphasis on alongside legalistic worship requirements. Academic Papers