It was narrated from Ibn Buraidah from his father, that:
The Messenger of Allah ﷺ would not go out on the Day of Fitr until he had eaten, and he would not eat on the Day of Nahr (the day of sacrifice) until he came back.

حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا أَبُو عَاصِمٍ، حَدَّثَنَا ثَوَابُ بْنُ عُتْبَةَ الْمَهْرِيُّ، عَنِ ابْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ لاَ يَخْرُجُ يَوْمَ الْفِطْرِ حَتَّى يَأْكُلَ وَكَانَ لاَ يَأْكُلُ يَوْمَ النَّحْرِ حَتَّى يَرْجِعَ .