It was narrated that ‘Ali bin Ab Talib, may Allah be pleased with him, said: “The Messenger of Allah صلی اللہ علیہ وآلہ وسلم forbade sacrificing an animal with its ears slit from the front, an animal with its ears slit from the back, an animal with its ears slit lengthwise, an animal with a round hole in its ear, or an animal with its nose cut off.” (Hasan)