Al-Adha Festival Sacrifice (Adaahi)

Bukhari :: Book 7 :: Volume 68 :: Hadith 465

Narrated Anas:

The Prophet slaughtered two rams, black and white in color (as sacrifices), and I saw him putting his foot on their sides and mentioning Allah's Name and Takbir (Allahu Akbar). Then he slaughtered them with his own hands.