'Ali (RAA) narrated, 'Allah's Messenger (ﷺ) enjoined us to pay great attention to the eye and the ear and not sacrifice a one-eyed animal with a slit which leaves something hanging at the front or back of the ear, or with a perforation in the ear, or an animal with broken front teeth.' Related by Ahmad and the four Imams. At-Tirmidhi, Ibn Hibban and Al-Hakim graded it as Sahih.
English reference: Book 12, Hadith 1393
Arabic reference: Book 12, Hadith 1352