Nasir Khusraw
Nasir Khusraw (Persian: ناصرخسرو; 1004 – between 1072–1088) was a Persian Isma'ili poet, philosopher, traveler, and missionary (da'i and later Ḥujjah of Imam al-Mustansir Billah) for the Isma'ili Fatimid Caliphate. He was a prominent Isma'ili philosopher and theologian of the Fatimids, authoring numerous philosophical works.