Shiavault - a Vault of Shia Islamic Books Imam Hasan bin Ali Imam Hasan's Role In Islamic Life At an early age, the role of the grandson of the Holy Prophet (S) began to evidence itself. It was before he was officially appointed to the office of Imamate by his father. His positive role took shape clearly from the moment the Muslim ummah gave their pledge of allegiance to Imam ‘Ali (as) as the new caliph. It rose to its zenith after the martyrdom of Imam ‘Ali (as). Previous Next