Abdullah bin Buraidah narrates from his father: The Prophet Muhammad (peace be upon him) was returning from a battle when a black girl came and said, "O Messenger of Allah (peace be upon him)! I had vowed that if Allah brought you back safely, I would beat the drum (duff) near you." The Prophet (peace be upon him) said, "If you had made a vow, then do so; otherwise, do not." She said, "I had made a vow," so the Prophet (peace be upon him) sat down and she beat the drum.