Yahya related to me from Malik from Hisham ibn Urwa from hisfather that the man who was in charge of the sacrificial animal of theMessenger of Allah, may Allah bless him and grant him peace, said,"Messenger of Allah, what should I do with a sacrificial animal thatgets injured?" The Messenger of Allah, may Allah bless him and granthim peace, said to him, "Slaughter any sacrificial animal that isinjured. Then throw the garlands in its blood, and then give thepeople a free hand in eating it.
USC-MSA web (English) reference: Book 20, Hadith 154
Arabic reference: Book 20, Hadith 857