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 a mound 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 lifted me up high, I used to recognize my father when he passed by Banu Qurayzah. He was participating in jihad with the Prophet (peace and blessings be upon him) on the occasion of the Battle of the Trench, and the Prophet (peace and blessings be upon him) was saying, "Who will go to Banu Qurayzah and fight them?" On his return, I said to my father, "Dear father! By Allah! I recognized you at that time when you were going towards Banu Qurayzah." He replied, "Son! On that occasion, the Prophet (peace and blessings be upon him) gathered his parents for me and said, 'May my mother and father be sacrificed for you.'"