´'Ali said:` "Messenger of Allah forbade us from sacrificing an animal with a broken horn." I (the narrator) mentioned that to Sa'eed bin Al_Musayyab and he said: "Yes, m unless half or more of the horn is missing."
Related hadith on this topic
Explanation & Benefits
Hafiz Muhammad Ameen
In Arabic, the word "a‘dab" has been used. Hazrat Sa‘id ibn al-Musayyib rahimahullah has explained this very word, stating that an animal is not called "a‘dab" due to a slightly broken horn; rather, if half or more than half of the horn is broken, then its sacrifice will be prohibited. Thus, the status of the horn is not like that of the ear. A minor defect in it is excused.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 4382
Shaykh Dr. Abdur Rahman Freywai
Urdu Footnote:
Note:
(The narrator "Jari" is weak in hadith transmission.)
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 1504
Shaykh Umar Farooq Saeedi
Benefits and Issues:
➊ One meaning of "Adhba" or "Adhb" is exactly this: that the inner part of the horn is broken.
➋ And the other meaning is that which is found in the following narration: that is, half of the horn is broken or more than half.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2805