Wedlock, Marriage (Nikaah)
Bukhari :: Book 7 :: Volume 62 :: Hadith 100
Narrated Thabit:
The marriage of Zainab bint Jahash was mentioned in the presence of Anas and he said, "I did not see the Prophet giving a better banquet on marrying any of his wives than the one he gave on marrying Zainab. He then gave a banquet with one sheep."