I wrote a letter to Nafi` and Nafi` wrote in reply to my letter that the Prophet (ﷺ) had suddenly attacked Bani Mustaliq without warning while they were heedless and their cattle were being watered at the places of water. Their fighting men were killed and their women and children were taken as captives; the Prophet (ﷺ) got Juwairiya on that day. Nafi` said that Ibn `Umar had told him the above narration and that Ibn `Umar was in that army.
Sahih al-Bukhari Book 49, Hadith 24
← Previous Hadith When the delegates of the tribe of Hawazin came to the Prophet (ﷺ) and they requested him to return their properties and captives. The Prophet (ﷺ) stood up and said to them, "I have other people with me in this matter (as you see) and the most beloved statement to me is the true one; you may choose either the properties or the prisoners as I have delayed their distribution." The Prophet (ﷺ) had waited for them for more than ten days since his arrival from Ta'if. So, when it became evident to them that the Prophet (ﷺ) was not going to return them except one of the two, they said, "We choose our prisoners." The Prophet got up amongst the people and glorified and praised Allah as He deserved and said, "Then after, these brethren of yours have come to us with repentance, and I see it logical to return them the captives. So, whoever amongst you likes to do that as a favor, then he can do it, and whoever of you likes to stick to his share till we recompense him from the very first war booty which Allah will give us, then he can do so (i.e. give up the present captives)." The people unanimously said, "We do that (return the captives) willingly." The Prophet (ﷺ) said, "We do not know which of you has agreed to it and which have not, so go back and let your leaders forward us your decision." So, all the people then went back and discussed the matter with their leaders who returned and informed the Prophet (ﷺ) that all the people had willingly given their consent to return the captives. This is what has reached us about the captives of Hawazin. Narrated Anas that `Abbas said to the Prophet, "I paid for my ransom and `Aqil's ransom."

Sahih al-Bukhari Book 49, Hadith 23 Next Hadith → I saw Abu Sa`id and asked him about coitus interruptus. Abu Sa`id said, "We went with Allah's Apostle, in the Ghazwa of Bani Al-Mustaliq and we captured some of the 'Arabs as captives, and the long separation from our wives was pressing us hard and we wanted to practice coitus interruptus. We asked Allah's Messenger (ﷺ) (whether it was permissible). He said, "It is better for you not to do so. No soul, (that which Allah has) destined to exist, up to the Day of Resurrection, but will definitely come, into existence."

Sahih al-Bukhari Book 49, Hadith 25