Merits of the Helpers in Madinah (Ansaar)

Bukhari :: Book 5 :: Volume 58 :: Hadith 221

Narrated 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) .