Good Manners and Form (Al-Adab)

Bukhari :: Book 8 :: Volume 73 :: Hadith 106

Narrated 'Asim:

I said to Anas bin Malik, "Did it reach you that the Prophet said, "There is no treaty of brotherhood in Islam'?" Anas said, "The Prophet made a treaty (of brotherhood) between the Ansar and the Quraish in my home."