52 - Muhammad informed us, saying: Waki' informed us, from Shu'bah, from Yahya ibn al-Husayn, from his grandmother, who said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, delivering a sermon at 'Arafah, and he was saying: "If a Habashi (Abyssinian) slave with mutilated extremities is appointed as a ruler over you, then listen to him and obey him, as long as he leads you by the Book of Allah."