Narrated Jabir: The Messenger of Allah صلی اللہ علیہ وسلم as saying: Sacrifice only a full-grown animal unless it is difficult for you, in which case sacrifice a lamb.

Narrated Zayd ibn Khalid al-Juhani: The Messenger of Allah صلی اللہ علیہ وسلم distributed sacrificial animals among his Companions. He gave me a kid (of less than a year). I took it to him and said: This is a kid. He said: Sacrifice it. so I sacrificed it.

Narrated Asim bin Kulaib: On the authority of his father: We were with a man from the Companions of the Prophet صلی اللہ علیہ وسلم called Mujashi' who belonged to Banu Sulaim. There was a scarcity if goats (in those days). He commanded a man to announce (among the people); so he announced that the Messenger of Allah صلی اللہ علیہ وسلم used to say: A lamb may be given as full payent for that for which has full-grown animal is payment. Abu Dawud said: His name is Mujashi' bin Masud.

Narrated Al-Bara bin Azib: The Messenger of Allah صلی اللہ علیہ وسلم delivered a sermon to us on the day of sacrifice after the prayer. He said: If anyone prays like our prayer, and sacrifices like our sacrifice, his sacrifice is all right. If anyone sacrifices before the prayer (forEid), that is goat meant for flesh. Abu Burdah bin Niyar stood up and said: Messenger of Allah, I swear by Allah, I sacrificed before I went for prayer. I thought it was the day of eating and drinking; so I made haste, and ate myself, and supplied flesh to my family and neighbors. The Messenger of Allah صلی اللہ علیہ وسلم said: That is a goat meant for eating flesh. He said: I have a kid (of less than a year) which is better than two goats meant for flesh. Will it be valid from me ? He said: Yes, but it will not be valid for anyone after you.

Narrated Al-Bara ibn Azib: A maternal uncle of mine called Abu Burdah sacrificed before the prayer (for Eid). The Messenger of Allah صلی اللہ علیہ وسلم said: Your goat is meant for flesh. He said: Messenger of Allah, I have a domestic kid with me. He said: Sacrifice it, but it is not valid for any man other than you.