Sunan an-Nasa'i 4428

It was narrated from Abu Sa'eed Al-Khudri that:the Messenger of Alllah forbade (Eating) the meat of sacrificial animals after three days. Then Qatadh bin An-Nu' man, who was brother of Abu Sa'eed through his mo0ther, and had been present at Badr, came and they offered him (some of the meat) .He said: "Didn't the Messenger of Allah forbid it?" Abu Sa eed said: "Something happened later. The Messenger of Allah forbade us to eat it for more than three days, then he allowed us to eat it and store it." (Sahih)