Musnad Ahmad

Sayyiduna Abdullah bin Zubair (may Allah be pleased with them both) narrates that on the day of the Battle of the Trench, I and Umar bin Abi Salamah were on the hill called Atm Hassaan, in which the pure wives of the Prophet (peace and blessings be upon him) were present. (Sometimes he would lift me up high and sometimes I would lift him up high. When he would lift me up high,) I used to recognize my father when he passed by Banu Qurayza. On his return, I said to my father, “Dear father! By Allah! I recognized you at that time when you were walking around.” He said, “Son! Did you really see me?” I said, “Yes!” He said, “The Prophet (peace and blessings be upon him) had said: ‘Who will go to Banu Qurayza and bring me their news?’ I went, and when I returned, the Prophet (peace and blessings be upon him) at that moment gathered his parents for me and said: ‘May my mother and father be sacrificed for you.’”