It was narrated that Abu ‘Ubaid, the freed slave of ‘AbdurRahman bin Azhar, said:
I saw `Ali (رضي الله عنه) and ‘Uthman (رضي الله عنه) praying on the day of al-Fitr and the day of al-Adha, then they reminded the people. And I heard them say: The Messenger of Allah (ﷺ) forbade fasting on these two days. And I heard ‘Ali (رضي الله عنه) say: The Messenger of Allah (ﷺ) forbade anything of the sacrificial meat to be left after three days.