Sahih Muslim 5106
صحيح مسلم#5106SahihJabir b. 'Abdullah reported:We did not eat the flesh of sacrificed animals beyond three (days), but then Allah's Messenger (ﷺ) commanded us to make it a provision for journey and cat it (beyond three days)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 35:43