Muḥammad al-Bāqir (676–733 AD), (also called abu Ja'far) (known as al-Baqir (the one who splits open knowledge)) (full name Muhammad bin 'Ali bin al-Husayn bin Ali bin Abi Talib) was the fifth Shiite imam, succeeding his father Zayn al-Abidin and succeeded by his son Ja'far al-Sadiq. He was the first imam descended from both grandsons of Prophet Muhammad, i.e. Imam Hasan ibn Ali and Imam Husayn ibn Ali. Many traditions and abundant wisdom were reported on his authority. He is revered by Shiite Muslims for his religious leadership and highly respected by Sunni Muslims for his knowledge and Islamic scholarship as a leading jurist of Medina.