It is narrated from Sayyiduna Ali bin Abu Talib (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) forbade sacrificing an animal whose ear is cut or whose horn is broken. The narrator Qatadah says: I asked Sa'id bin al-Musayyib (about the extent of 'adba), he said: Half or more than that is broken.

It is narrated from Sayyiduna Ali (may Allah be pleased with him), he says: The Messenger of Allah (peace and blessings be upon him) commanded us to carefully observe the eyes and ears and not to sacrifice those animals which are cross-eyed, have an ear cut from the front, have an ear cut from the back, have an ear split lengthwise, have a round hole in the ear, or have a cut nose. Zuhair says: I asked Abu Ishaq, did they mention ‘Azba’? He said: No. I said: What kind of animal is Muqabalah? He said: The one whose ear is cut at the edge. I said: What kind of animal is Mudabarah? He said: The one whose ear is cut from the back. Then he said: The ear of the animal used to be cut as a mark.

Yazid Dhi Misr says: I came to Sayyiduna Utbah bin Abd Salma (may Allah be pleased with him) and said: O Abu al-Walid! I had gone out to buy a sacrificial animal, but I did not find any that I liked, except for one animal whose front tooth was broken. What do you say about it? He said: Why did you not bring it to me? I said: Subhan Allah, is it permissible for you and not permissible for me? He said: Yes, absolutely, because you doubt and I do not doubt. The Messenger of Allah (peace and blessings be upon him) forbade those animals: whose ear is cut so much that its hole becomes visible, whose entire ear is cut off, the one with a squinting eye, the one whose eye has become blind, the one that cannot walk behind the goats due to weakness and inability, and the one whose bones have no marrow. (Further, the meanings of these words are explained, which have been clarified in the translation.)

Ubaid bin Firoz asked Sayyiduna Bara’ (may Allah be pleased with him) about sacrificial animals: from which types of animals did the Messenger of Allah (peace and blessings be upon him) prohibit and dislike? He said: The Messenger of Allah (peace and blessings be upon him) stood among us and, gesturing with his hand in this manner—while my hand is smaller than his (peace and blessings be upon him)—he said: Four types of animals are not sufficient for sacrifice: (1) The cross-eyed one, whose cross-eyedness is obvious. (2) The sick one, whose sickness is obvious. (3) The lame one, whose lameness is obvious. (4) Such an emaciated animal that there is no marrow in its bones. I said: I also dislike defects in the horn, ear, or teeth. He said: Whatever you dislike, leave it, but do not declare it unlawful for others.

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him), he says: I bought a ram for sacrifice, but a wolf attacked it and took away its haunch. Then when I asked the Noble Prophet (peace and blessings be upon him) about this, he (peace and blessings be upon him) said: You can sacrifice it.

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, said: A one-year-old sheep from the sheep breed is better than a mature goat from the goat breed. Dawud said: By "mature" is meant a large (good and healthy animal).

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: A light gray-colored animal is more beloved and superior than two black-colored animals.