Sahih al-Bukhari 3882
صحيح البخاري#3882SahihNarrated Abu Huraira:Allah's Messenger (ﷺ), while going out for the battle of Hunain, said, "Tomorrow Allah willing, we will encamp at Khaif Bani Kinana where the pagans(of Quraish) took the oath of Kufr (against the Prophet (ﷺ) i.e. to be loyal to heathenism, by boycotting Banu Hashim, the Prophet's folk. (See Hadith)
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: 63:107