(d. 974 CE) was the preeminent jurist and chief justice of the Fatimid state. Serving under the direction of the fourth Fatimid Imam-Caliph, al-Mu'izz li-Din Allah , Nu’man compiled the Da'a'im al-Islam to provide a definitive legal manual that combined practical law (fiqh) with the spiritual guidance of the Imams.
The title Da‘a’im al-Islam refers to the seven "Pillars" that constitute the foundation of Ismaili faith and practice. Unlike the Sunni tradition which focuses on five pillars, Ismaili jurisprudence expands this to seven:
