Sahih al-Bukhari Book 73, Hadith 20
The Prophet (ﷺ) used to offer as sacrifices, two horned rams, black and white in color, and used to put his
foot on their sides and slaughter them with his own hands.
One day Allah's Messenger (ﷺ) offered the `Id prayer and said, "Whoever offers our prayer and faces our Qibla should not slaughter the sacrifice till he finishes the `Id prayer." Abu Burda bin Niyar got up and said, "O Allah's Messenger (ﷺ)! I have already done it. The Prophet (ﷺ) said, "That is something you have done before its due time." Abu Burda said, "I have a Jadha'a which is better than two old sheep; shall I slaughter it?" The Prophet (ﷺ) said, "Yes, but it will not be sufficient for anyone after you."
The Prophet (ﷺ) offered as sacrifices, two horned rams, black and white in color. He slaughtered them with his own hands and mentioned Allah's Name over them and said Takbir and put his foot on their sides.