Apart from those we mentioned, other Shi’ah scholars also preceded Abu Ubayd.

Apart from those we mentioned, other Shi’ah scholars also preceded Abu Ubayd. Among them were: Abu Ja’far Muhammad ibn Sa’dan, the blind. Counting him among the Shi’ah reciters in Al–Fihrist , Ibn al–Nadim says “He used to teach the Sunnis. In the beginning, he followed the recitation of Hamza but later he followed his own way. He was born in Baghdad but subscribed to the Kufi school. He died on the day of Arafa (9th Zu al–Hijjah) in 231 A. H.

He is the author of Kitab al–Qira’a and Kitab Mukhtasar al–Nahw. Abu Ja’far Muhammad ibn al–Hasan ibn Abi Sarah al–Rawwasi al–Kufi, the teacher of al–Kasa’i and al–Farra', one of Imam al–Baqir’s devoted followers, also preceded Abu Ubayd. Abu Amr al–Dani has mentioned him in Tabaqat al–Qurra ' thus: “He (Abu Ja’far) related the ‘