Sunan an-Nasa'i

It was narrated that 'Ali bin Abi Talib, may Allah be please with him, said:

"The Messenger of Allah forbade sacrificing an animals with its ears slit form the front, and animals with its ears slit form the back, and animal with its ears slit lengthwise, an animals with a round hole in tits ear, or an animals with its nose cut off"