Muḥammad b. ʿAlī b. al-Ḥusayn b. ʿAlī b. Abī Ṭālib (b. 57/677 – d. 114/733) known as Imām al-Bāqir (a) and Bāqir al-‘Ulūm, was the fifth Imam of the Shi’a, whose period of Imamate lasted nineteen years.
Imam al-Baqir (a) made a great scientific movement which reached its peak at the time of his son Imam al-Sadiq (a). His narrations in religion, conduct of the Prophet (s), Qur’an sciences, moral conduct, and manner is more than what is remained from the children of Imam al-Hasan (a) and Imam al-Husayn (a). Thus, during his imamate, a great step was taken towards organization of Shi’i thought in different fields including ethics, jurisprudence, theology, exegesis, etc.