Eat. He said: I am fasting. 'Amr said: Eat, these are the days on which the Messenger of Allah ﷺ used to command us to break fast, and forbid us to keep fast. The narrator Malik said: These are the day of al-tashriq (i.e. 11th, 12th, and 13th of Dhu al-Hijjah).  

عَمْرٌو كُلْ فَهَذِهِ الأَيَّامُ الَّتِي كَانَ رَسُولُ اللَّهِ ﷺ يَأْمُرُنَا بِإِفْطَارِهَا وَيَنْهَانَا عَنْ صِيَامِهَا قَالَ مَالِكٌ وَهِيَ أَيَّامُ التَّشْرِيقِ  

The Prophet ﷺ said: The day of Arafah, the day of sacrifice, the days of tashriq are (the days of) our festival, O people of Islam. These are the days of eating and drinking.  

قَالَ رَسُولُ اللَّهِ ﷺ يَوْمُ عَرَفَةَ وَيَوْمُ النَّحْرِ وَأَيَّامُ التَّشْرِيقِ عِيدُنَا أَهْلَ الإِسْلاَمِ وَهِيَ أَيَّامُ أَكْلٍ وَشُرْبٍ