The Biography of the Sultans of Kilwa

65 ibn Tāher had a dream where, he said, he was addressed by the Prophet Muhammad saying "Ali, get up and take hold of Yemen." Ali ibn Tāher woke up and narrated the dream to his companion, Ali ibn Suān, and asked him: "Did you have a dream like mine?" "No," his companion said. Ali ibn Tāher had the same dream in the two following nights. He then said to Ali ibn Suān, "This dream must be meant for you, because you are one of the descendants of the Prophet Muhammad." "No," Ali ibn Suān responded. "It is for you specically. You saw it, not me." They both argued and eventually they made amends and agreed to pledge to