Musannaf Ibn Abi Shaybah 39604 — What I have preserved about Banu

It is narrated from Yazid bin al-Asamm that when Allah Almighty had driven away the armies, and the Prophet (peace and blessings be upon him) had returned to his house and begun washing his blessed head, Jibril came to him (peace and blessings be upon him) and said: "May Allah Almighty pardon you. You have put down your weapons, while the angels of the heavens have not put down theirs. Come with us to the fortress of Banu Qurayzah." So the Prophet (peace and blessings be upon him) had it announced among the people: "Reach the fortress of Banu Qurayzah." Then he (peace and blessings be upon him) took a ritual bath, and he (peace and blessings be upon him) too went to them at the fortress.