Sunan an-Nasa'i 4427

It was narrated from Ibn Khabbab - who is 'Abdullah bin Khabbab - that:Abu Sa 'eed Al- Kahudri arrived from a jouney and his family offered him some meat from the sacrificial animal. He said: "I am not going to eat it until I ask about it," So he went to his half-brother through his mother, Qatadah bin An- Nu man who had been presently at Badr, and asked him about that. He said: "The opposite of what you were forbidden occurred after that, and (Permission was granted) to eat the sacrificial meat after three days" (Sahih)