Volume 7, Book 68, Number 467:
Narrated Al-Bara’:
I heard the Prophet delivering a sermon, and he said (on the Day of ‘Id-Allah. a), “The first thing
we will do on this day of ours is that we will offer the ‘Id prayer, then we will return and slaughter
our sacrifices; and whoever does so, then indeed he has followed our tradition, and whoever
slaughtered his sacrifice (before the prayer), what he offered was just meat that he presented to his
family, and that was not a sacrifice.” Abu Burda got up and said, “O Allah’s Apostle! I slaughtered the
sacrifice before the prayer and I have got a Jadha’a which is better than an old sheep.” The Prophet
said, “Slaughter it to make up for that, but it will not be sufficient for anybody else after you.”