Sunan an-Nasa'i 4434
سنن النسائي#4434SahihIt was narrated that Abu sa'eed Al-aKhudri said:"The Messenger of Allah forbade keeping the meat of the sacrificial animals for more than three days, then he said: 'Eat and feed other,"' (Sahih)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 43:74