High Quality Content by WIKIPEDIA articles! Abdullah Ali al-Asghar ibn Husayn ( April, 61 AH - Tenth of Muharram the 10th of October, 61 AH) was the youngest child of Husayn ibn Ali (the grandson of the Islamic prophet Muhammad and the third Shia Imam) and Rubab (the daughter of the chief of the Kinda Imra al-Qays tribe). He is honored by Muslims as the youngest martyr of the Battle of Karbala.