Sahih al-Bukhari Book 73, Hadith 19
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."
I witnessed the Prophet (ﷺ) on the Day of Nahr. He said, "Whoever slaughtered the sacrifice before offering the `Id prayer, should slaughter another sacrifice in its place; and whoever has not slaughtered their sacrifice yet, should slaughter now."
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.