Yahya related to me from Malik from Yahya ibn Said from Abbad ibnTamin that one time Uwaymir ibn Ashqar sacrificed his animal beforethe prayer on the morning of the Day of Sacrifice, and he mentionedthat the Messenger of Allah, may Allah bless him and grant him peace,had ordered him to sacrifice another animal.
USC-MSA web (English) reference: Book 23, Hadith 5
Arabic reference: Book 23, Hadith 1035