Pilgrimmage (Hajj)
Bukhari :: Book 2 :: Volume 26 :: Hadith 770
Narrated Sahl bin Bakkar:
The narration of Anas abridged, saying, "The Prophet slaughtered seven Budn (camels) while standing, with his own hands. On the day of 'Id-ul-Adha he slaughtered (sacrificed) two horned rams, black and white in color.