عَنْ الْبَرَاءِ ، قَالَ : سَمِعْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَخْطُبُ ، فَقَالَ : إِنَّ أَوَّلَ مَا نَبْدَأُ مِنْ يَوْمِنَا هَذَا أَنْ نُصَلِّيَ ، ثُمَّ نَرْجِعَ فَنَنْحَرَ ، فَمَنْ فَعَلَ فَقَدْ أَصَابَ سُنَّتَنَا(بُخاری شریف:۹۵۱)
Translation
Hazrat Bara (may Allah be pleased with him) said that I heard the Holy Prophet (PBUH), He (PBUH) was delivering a sermon on the day of Eid and said that the first thing we do on this day of ours (Eid ul-Adha), is that first we offer the prayer, then we return and offer the sacrifice. Whoever did it in this manner, he followed our way.