In 627 or early in 628, Safiyya married Kenana ibn al-Rabi, treasurer of the Banu Nadir; she was about 17 years old at that time. According to Muslim sources, Safiyya is said to have informed Kenana of a dream she had in which the moon had fallen from the heavens into her lap. Kenana interpreted it as a desire to marry Muhammad and struck her in the face, leaving a mark which was still visible when she first had contact with Muhammad.