The incident of the Golden Calf as it is narrated in the Quran paints Aaron in a positive light. The Quran says that Aaron was entrusted the leadership of Israel while Moses was up on (, Mount Sinai) for a period of forty days (Quran 7: 142). It adds that Aaron tried his best to stop the worship of the Golden Calf, which was built not by Aaron but by a wicked man by the name of 'As-Samiri' (Quran 19: 50). When Moses returned from Mount Sinai, he rebuked Aaron for allowing the worship of the idol, to which Aaron pleaded with Moses to not blame him when he had no role in its construction (Quran 7: 150). The Quran then adds that Moses here lamented the sins of Israel, and said that he only had power over himself and Aaron (Quran 5: 25).