Imam 'Ali ibn Musa Ar-Rida (peace be with him)
Name: 'Ali ibn Musa
Kuniya: Abul Hasan
Birthdate: Thursday, 11th Zilqad, 148 A.H. (765). in Madina
Father: Imam Musa Al-Kadhim (peace be upon him), 7th Holy Imam
Mother: Ummul Baneen Najma
Attaining of the position of Imam: At the age of thirty-five years, and he held that divine position for about twenty years.
Date: Tuesday, 17th Safar, 203 A.H. (818).