Sahih Bukhari | Volume 5 | Hadith Number 221
Narrated by Abu Huraira
Allah's Apostle, 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 i.e. to be loyal to heathenism, by boycotting Banu Hashim, the Prophet's folk, See Hadith No. 659 Vol. 2).