Sahih al-Bukhari 2954
صحيح البخاري#2954SahihNarrated Abu Hurairah (ra):Allah's Messenger (ﷺ) sent us on a military expedition telling us, "If you find such and such persons (he named two men from Quraish), burn them with fire." Then we came to bid him farewell, when we wanted to set out, he said: "Previously I ordered you to burn so-and-so and so-and-so with fire, but as punishment with fire is done by none except Allah, if you capture them, kill them, (instead)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 56:166