Anas said that when the Prophet came to Medina the people had two days on which they engaged in games. Having asked what their significance was and being told that they had engaged in games on them in the pre-Islamic period, he said, “God has substituted for them something better than them, the day of sacrifice and the day of the breaking of the fast.”
Buraida said that the Prophet did not go out on the day of the breaking of the fast till he had some food, but that he did not take any food on the day of sacrifice till he had prayed.
Al-Bara’ reported God’s Messenger as saying, “If anyone sacrifices before the prayer, he is sacrificing only for himself; but if anyone sacrifices after the prayer, his rites are complete and he has correctly followed the practice of the Muslims."