Abū Ḥātim Aḥmad ibn Ḥamdān al-Rāzī (Persian: ابو حاتم احمد بن حمدان الرازی) was a Persian[1] Ismaili philosopher of the 10th century, who died in 322 AH (932/933 CE).
[2][3] He was also the Da'i al-du'at (chief missionary) of Ray and the leader of the Ismaili da'wah in Central Persia.
He was born in Ray near modern Tehran.
He was a contemporary of Muhammad ibn Zakariya al-Razi and engaged in debates with him.