Sunan At-Tirmidhi

Narrated 'Ali:""The Messenger of Allah (ﷺ) prohibited that an animal with a A'dab (stump) horn or ear should be slaughtered as a sacrifice."" Qatadah (one of the narrators) said: ""So I mentioned this to Sa'eed bin Al-Musayyab and he said: 'The A'dab is that which equals or more than that