Sahih Bukhari
Pilgrimmage (Hajj)
Volume: 002 / Book Number: 026 / Hadith Number: 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.