V. The Fifth Imam, Muhammad, known as al-Baqir (57/675II4/732)
The son of the fourth Imam, he was present at Karbala at a young age. Because of changing political and religious conditions, among them the general revulsion following the events at Karbala, many people came to Medina to learn the religious and spiritual sciences from him. He trained numerous well-known men of religion, and mainly for this reason is the first Imam after 'Ali from whom large numbers of traditions are recorded. He is buried in the Baqi' cemetery in Medina.