Muḥammad b ʿAlī b Mūsā known as Imām al-Jawād (a) was the ninth Imam of Twelver Shia.
He (a) was born on Rajab 10, 195/April 8, 811 in Medina and was Imam for 17 years. He was martyred when he (a) was 25 years old He was the youngest Imam when he was martyred.