Chapter 33: The Book ofJihadand Expeditions
It has been narrated on the authority of Abu Sa' id al-Khudri who said: The people of Quraiza surrendered accepting the decision of Sa' d b. Mu' adh about them. Accordingly, the Messenger of Allah (ﷺ) sent for Sa' d who came to him riding a donkey. When he approached the mosque, the Messenger of Allah (ﷺ) said to the Ansar: Stand up to receive your chieftain. Then he said (to Sa' d): These people have surrendered accepting your decision. He (Sa' d) said: You will kill their fighters and capture their women and children. (Hearing this), the Prophet (ﷺ) said: You have adjudged by the command of God. The narrator is reported to have said: Perhaps he said: You have adjudged by the decision of a king.
Ibn Muthanna (in his version of the tradition) has not mentioned the alternative words.
Sahih Muslim 1768a