l saw ʿAli ؓ and ʿUthman ؓ on the day of Eid al-Fitr and Eid al-Adha; they prayed, then when they finished they reminded the people. I heard them saying: The Messenger of Allah ﷺ forbade fasting on these two days. He said: And I heard ‘Ali say: The Messenger of Allah ﷺ forbade anything of the sacrificial meat to be left after three days.
وَسَمِعْتُهُمَا يَقُولانِ إِنَّ رَسُولَ اللهِ ﷺ نَهَى عَنْ صِيَامِ هَذَيْنِ الْيَوْمَيْنِقَالَ وَسَمِعْتُ عَلِيًّا يَقُولُ نَهَى رَسُولُ اللهِ ﷺ أَنْ يَبْقَى مِنْ نُسُكِكُمْ عِنْدَكُمْ شَيْءٌ بَعْدَ ثَلاثٍ