It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said, gesturing with his hand (and my hand is shorter than the blessed hand of the Messenger of Allah (peace and blessings be upon him)): "Four kinds of animals do not suffice for sacrifice: the one-eyed animal whose loss of an eye is evident, the sick animal whose sickness is apparent, the lame animal whose lameness is obvious, and the emaciated animal that has no marrow left in its bones." (The narrator said:) I said: I also dislike a defect in the ear and the horn. He said: Leave whatever you dislike, but do not make it unlawful for others. This hadith is sahih (authentic), and the two Shaykhs did not record it because of a hidden defect ('illah) in the narrations of Sulayman bin Abd al-Rahman, whereas Ali bin al-Madini has made clear his virtues and his precision; and this hadith has various sahih supporting narrations (shawahid).

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) forbade sacrificing an animal with a broken horn or a cut ear. Qatadah said: I mentioned this to Sa'id bin al-Musayyib, and he said: 'Adab (broken or cut) means half or more than half.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) ordered us to examine the eye and the ear (of the sacrificial animal) carefully.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that a man asked him about sacrificing a cow, and he said: It is on behalf of seven people. He asked: What if its horn (is broken) or it is lame? He said: When it reaches the place of slaughter (the sacrifice is valid). And the Messenger of Allah (peace and blessings be upon him) ordered us to examine the eye and the ear (of the animal) carefully.

It is narrated from Abu Humayd al-Ru'ayni (may Allah have mercy on him) that: We were sitting with Sayyiduna Utbah bin Abd al-Sulami (may Allah be pleased with him) when Yazid Dhu Misr al-Muqra'i came and said to Utbah: O Abu al-Walid, we just went out looking for a young goat for sacrifice, but we could hardly find anything with marrow in its bones, except that I found a fat goat with broken front teeth. Utbah said: Why did you not bring it to us? He said: Allah forgive me! Is it valid on your behalf and not valid on mine? He said: Yes; you are in doubt and I am not in doubt. Then Utbah put out his hand and said: The Messenger of Allah (peace and blessings be upon him) forbade only five: "Al-mu'salah, al-musfarah, al-bakhqa', al-kasra' and al-mushayyi'ah." He explained that mu'salah means an animal whose horn has been uprooted, musfarah one whose ear has been cut off from the root, bakhqa' one whose loss of an eye is evident, kasra' one whose bone is broken, and mushayyi'ah an extremely weak or sick animal that cannot keep up with the flock.

It is narrated from Sayyidah Aishah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) sent Sayyidah Umm Salamah (may Allah be pleased with her) (from Muzdalifah towards Mina) on the night of the Day of Sacrifice. So she stoned the Jamrah before dawn, then went on from there (towards the Ka'bah) and performed Tawaf al-Ifadah. That was the second day, on which it was the turn of the Messenger of Allah (peace and blessings be upon him) to be with her. This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.