Harmalah ibn Yahya narrated to me, Ibn Wahb informed us, Yunus informed me, from Ibn Shihab, from Ubaydullah ibn Abdullah ibn Utbah ibn Mas'ud, from Abdullah ibn Abbas, that he and al-Hurr ibn Qays ibn Hisn al-Fazari disputed concerning the companion of Musa, peace be upon him. Ibn Abbas said, "He is al-Khidr." Then Ubayy ibn Ka'b al-Ansari passed by them, and Ibn Abbas called him and said, "O Abu al-Tufayl, come to us, for I have disputed with this companion of mine concerning the companion of Musa who asked for the way to meet him. Have you heard the Messenger of Allah, peace and blessings be upon him, mention his matter?" Ubayy said, "I heard the Messenger of Allah, peace and blessings be upon him, say: 'While Musa was among a group of the Children of Israel, a man came to him and said to him, "Do you know of anyone more knowledgeable than you?" Musa said, "No." So Allah revealed to Musa, "Yes, Our servant al-Khidr." He said: So Musa asked for the way to meet him, and Allah made the fish a sign for him, and it was said to him, "When you lose the fish, then return, for you will meet him." So Musa traveled as far as Allah willed for him to travel, then he said to his young companion, "Bring us our morning meal." The young companion of Musa said, when he asked for the meal, "Did you see when we took refuge at the rock? Indeed, I forgot the fish, and nothing made me forget it except Satan, that I should remember it." Musa said to his young companion, "That is what we were seeking." So they returned, following their footprints, and they found al-Khidr. Then what happened between them was what Allah has related in His Book.'" Except that Yunus said, "He was following the trace of the fish in the sea."