ahya related to me from Malik from Yahya ibn Said from Bushayribn Yasar that Abu Burda ibn Niyar sacrificed an animal before theMessenger of Allah, may Allah bless him and grant him peace,sacrificed on the Day of Sacrifice. He asserted that the Messenger ofAllah, may Allah bless him and grant him peace, ordered him tosacrifice another animal, and he, Abu Burda, said, "What if I can onlyfind an animal less than one year old, Messenger of Allah?" He hadsaid, "If you can only find a young animal, then sacrifice it."
USC-MSA web (English) reference: Book 23, Hadith 4
Arabic reference: Book 23, Hadith 1034