2 – On the authority of Yahya ibn Saʿid, from Anas (may Allah be pleased with him): “The Messenger of Allah, peace and blessings be upon him, was commissioned as a prophet at the age of forty; he stayed in Mecca for ten years and in Medina for ten years. When the Messenger of Allah, peace and blessings be upon him, passed away, there were fewer than twenty white hairs in his beard and on his head.”