" The Messenger of Allah commanded us to examine the eyes and ears (of animals for sacrifice)."
Sunan an-Nasa'i Book 43, Hadith 16
← Previous Hadith "Do not sacrifice and animal with its ears slit from the front, and animal with its ears slit from the back, an animals with its ears slit lengthwise, and animal with a round hole in its ears, or an animal with one bad eye."

Sunan an-Nasa'i Book 43, Hadith 15 Next Hadith → "Messenger of Allah forbade us from sacrificing an animal with a broken horn." I (the narrator) mentioned that to Sa'eed bin Al_Musayyab and he said: "Yes, m unless half or more of the horn is missing."

Sunan an-Nasa'i Book 43, Hadith 17