Ali Bin Yaqteen
Ali bin Yaqteen (742-798 A.D./124-182 A.H.) was an outstanding Shi'ite traditionist, jurist, and theologian. He was born in Kufah and migrated to Madinah with his father and then moved to Baghdad. He first started his business as a chemist and then entered the Abbasid administrative setup and became an officer under Mahdi, the Abbasid caliph and got close to Harun al-Rashid (d. 809 A.D/ 193 A.H.).
He was an ardent Shi'ite but he like his father kept his beliefs in secret. He was in close contact with Imam Musa al-Kazim (A.S.) (746-799 A.D./128-183 A.H.) and the holy Imam had great confidence in him. Shi'ite writers believe that he remained in the Abbasid administration at the instance of Imam Musa Kazim (A.S.) in order to support the oppressed people and assist the Shi'ites. About his beliefs it was reported many times to Harun al-Rashid but he remained safe. Many traditions have been quoted regarding the firn beliefs and piety of Ali bin Yaqteen including a tradition in which Imam Kazim (A.S.) has guaranteed heaven to him.
He was a most reliable traditionist and narrated a tradition from Imam Sadiq (A.S.) and many traditions from Imam Kazim (A.S.) Many narrators had quoted traditions from him and many books are ascribed to him. He expired in Baghdad when Imam Kazim (A.S.) was interned in prisons of Harun al-Rashid. Khuzaimah, Yaqoob and Ubaid were the three sons of Yaqteen and they were the companions of Imam Musa al-Kazim (A.S.) and quoted traditions from the holy Imams.