سنن أبي داود

Narrated 'Aishah: The Prophet (Saws) ordered a horned ram with black legs, black belly and black round the eyes, and it was brought from him to sacrifice. He said: 'Aishah, get the knife then he said: Sharpen it with a stone. So I did. He took it, then take the ram he placed it on the ground and slaughtered it. He then said: In the name of Allah. O Allah, accept it for Muhammad, Muhammad's family and Muhammad's people. Then he sacrificed it.