Sunan an-Nasa'i 5405

It was narrated from Salim that his father said:"The Prophet [SAW] sent Khalid bin Al-Walid to Banu Jadhimah. He called them to Islam, but they could not say Aslamna (we submitted, i.e., became Muslim) so they started to say Saba'na (we changed our religion). Khalid started killing and taking prisoners, and he gave a prisoner to each man. The next day Khalid bin Al-Walid issued orders that each man among us kill his prisoner." Ibn 'Umar said: "I said: 'By Allah, I will not kill my prisoner, and no one (among my companions) will kill his prisoner.' We came to the Prophet [SAW], and he was told of what Khalid had done. The Prophet [SAW] said: 'I disavow what Khalid has done,' twice