Narrated Ali ibn Abu Talib: The Messenger of Allah صلی اللہ علیہ وسلم enjoined upon us to pay great attention to the eye and both ears, and not to sacrifice a one-eyed animal, and an animal with a slit which leaves something hanging at the front or back of the ear, or with a lengthwise slit with a perforation in the ear. I asked Abu Ishaq: Did he mention an animal with broken horns and uprooted ears? He said: No. I said: 'What is the Muqabalah ?' He replied: 'It has been cut from the back of its ear. ' I said: 'What about the Sharqa'? He replied: 'The ear has been split. ' I said: 'What about the Kharqa'? He replied: 'A hole is made (in its ears) as a distinguishing mark. '"

Narrated Ubayd ibn Firuz: I asked al-Bara ibn Azib: What should be avoided in sacrificial animals? He said: The Messenger of Allah صلی اللہ علیہ وسلم stood among us, and my fingers are smaller than his fingers, and my fingertips are smaller than his fingertips. He said (pointing with his fingers): Four (types of animals) should be avoided in sacrifice: A One-eyed animal which has obviously lost the sight of one eye, a sick animal which is obviously sick, a lame animal which obviously limps and an animal with a broken leg with no marrow. I also detest an animal which has defective teeth. He said: Leave what you detest, but do not make it illegal for anyone. Abu Dawud said: (By a lean animal mean) and animal which has no marrow.