Eid and the Holy Prophet’s practice

عَنِ الْبَرَاءِ، قَالَ سَمِعْتُ النَّبِیَّ صَلَّی اللهُ عَلَيْهِ وَسَلَّمَ يَخْطُبُ فَقَالَ

‏ إِنَّ أَوَّلَ مَا نَبْدَأُ مِنْ يَوْمِنَا هَذَا أَنْ نُصَلِّیَ، ثُمَّ نَرْجِعَ فَنَنْحَرَ، فَمَنْ فَعَلَ فَقَدْ أَصَابَ سُنَّتَنَا

Hazrat Al-Bara^ra narrates, “I heard the Holy Prophet^sa delivering a sermon in which he said, ‘The first thing to be done on this day [first day of Eid-ul-Adha] is to pray; and after returning from the prayer, we slaughter our sacrifices [in the name of Allah] and whoever does so, has acted according to our sunnah.’”

(Sahih al-Bukhari, Kitab al-Eidain, Hadith 951)