Abu Ubayd reported,

He was present at the Eid prayer with Umar bin Khattab. He said, "Then I prayed with Ali bin Abu Talib." Ali led us in prayer before the sermon, then addressed the people and said, "The Messenger of Allah ﷺ has forbidden you from eating the meat of your sacrifices beyond three nights, so do not eat it."

Muslim 5098

Sahih

حدثني حرملة بن يحيى أخبرنا ابن وهب حدثني يونس عن ابن شهاب

حدثني أبو عبيد مولى ابن أزهر

أنه شهد العيد مع عمر بن الخطاب قال ثم صليت مع علي بن أبي طالب قال فصلى لنا قبل الخطبة ثم خطب الناس فقال إن رسول الله ﷺ قد نهاكم أن تأكلوا لحوم نسككم فوق ثلاث ليال فلا تأكلوا

مسلم 5098صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Sacrificial animals
Chapter
Clarification of the prohibition in early Islam against eating sacrificial meat after three days, its abrogation, and its permissibility for as long as one wishes
Numbering
Darussalam 5098
Muslim 5098