The 5thand 9th Holy Imam (a) shared the same name; Muhammad ibn Ali. They also had the same Kuniya; Abu Ja'far Imam Muhammad al-Baqir (a) was a descendant of the Ahlul Bayt (a) from both sides. His father was the son of Imam al-Husayn (a) and his mother was the daughter of Imam al-Hasan (a). He was like the fruit of the leaders of the Youth of Paradise.