Al-Bara bin Azib (RA) reported Allahs Messenger ﷺ having said: The first (act) with which we started our day (the day of Id-ul Adha) was that we offered prayer. We then returned and sacrificed the animals and he who did that in fact adhered to our Sunnah (practice). And he who slaughtered the (animal on that day before the Id prayer), for him (the slaughtering of animal was directed to the acquiring of) meat for his family, and there is nothing of the sort of sacrifice in it. It was Abu Burda bin Niyar who had slaughtered (the animal before the Id prayer). He said: I have a small lamb, of less than one year, but better than that of more than a year. Thereupon Allahs Messenger ﷺ qaid: Sacrifice it, but it will not suffice (as a sacrifice) for anyone after you.