I heard the Prophet ﷺ delivering a Khutba saying, "The first thing to be done on this day (first day of ʿId ul Adha) is to pray; and after returning from the prayer we slaughter our sacrifices (in the name of Allah) and whoever does so, he acted according to our Sunna (traditions)."  

سَمِعْتُ النَّبِيَّ ﷺ يَخْطُبُ فَقَالَ إِنَّ أَوَّلَ مَا نَبْدَأُ مِنْ يَوْمِنَا هَذَا أَنْ نُصَلِّيَ ثُمَّ نَرْجِعَ فَنَنْحَرَ فَمَنْ فَعَلَ فَقَدْ أَصَابَ سُنَّتَنَا  

Abu Bakr came to my house while two small Ansari girls were singing beside me the stories of the Ansar concerning the Day of Buath. And they were not singers. Abu Bakr said protestingly, "Musical instruments of Satan in the house of Messenger of Allah ﷺ !" It happened on the ʿId day and Messenger of Allah ﷺ said, "O Abu Bakr! There is an ʿId for every nation and this is our ʿId."  

دَخَلَ أَبُو بَكْرٍ وَعِنْدِي جَارِيَتَانِ مِنْ جَوَارِي الأَنْصَارِ تُغَنِّيَانِ بِمَا تَقَاوَلَتِ الأَنْصَارُ يَوْمَ بُعَاثَ قَالَتْ وَلَيْسَتَا بِمُغَنِّيَتَيْنِ فَقَالَ أَبُو بَكْرٍ أَمَزَامِيرُ الشَّيْطَانِ فِي بَيْتِ رَسُولِ اللَّهِ ﷺ وَذَلِكَ فِي يَوْمِ عِيدٍ فَقَالَ رَسُولُ اللَّهِ ﷺ يَا أَبَا بَكْرٍ إِنَّ لِكُلِّ قَوْمٍ عِيدًا وَهَذَا عِيدُنَا