Chapter 52: Characteristics of The Hypocrites And Rulings Concerning Them
Zaid b. Thabit reported that Allah' s Apostle (ﷺ) set out for Uhud. Some of those persons who were with them came back. The Companions of Allah' s Apostle (ﷺ) were divided in two groups. One group said: We would kill them, and the other one said: No, this should not be done, and it was on this occasion that this verse was revealed: " Why should you, then, be two parties in relation to hypocrites?" (iv. 88).
Sahih Muslim 2776a