Career
He was also the Da"i al-Mutlaq (chief missionary) of Ray and the leader of the Ismaili da"wah in Central Persia. He was born in Rayy near modern Tehran. He was a contemporary of Muhammad ibn Zakariya al-Razi and engaged in debates with him.
He was also the Da"i al-Mutlaq (chief missionary) of Ray and the leader of the Ismaili da"wah in Central Persia. He was born in Rayy near modern Tehran. He was a contemporary of Muhammad ibn Zakariya al-Razi and engaged in debates with him.
