Is marking the hady obligatory or not?

It is narrated from Hazrat Ibn Abbas (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him and his family) marked the right side of the hump of the sacrificial animal and wiped away the blood from it.

It is narrated from Hazrat Miswar bin Makhrama and Marwan bin Hakam that the Noble Prophet (peace and blessings be upon him) put a garland on the sacrificial animal and marked it in the year of Hudaybiyyah.

Hazrat Ata, Hazrat Tawus, and Hazrat Mujahid say that performing the Ish'ar of Hadi is not necessary.

Hazrat Ata, Hazrat Tawus, and Hazrat Mujahid say that if you wish, perform the Ish'ar of the animal, and if you wish, do not perform it.

Hazrat Aisha (may Allah be pleased with her) was asked whether the marking (Ish'ar) of the sacrificial camel should be done. She replied that if one wishes, one may do Ish'ar, and it should be done so that it becomes known that this is a sacrificial camel.

Hazrat Ibn Umar (may Allah be pleased with them both) says that an animal is not considered for sacrifice until it is garlanded, marked, and made to stand at Arafah.

Hazrat Ata and Hazrat Abdur Rahman bin Aswad say that the sacrificial animal should be adorned with a covering and then marked with an incision.

It is narrated from Hazrat Aisha (may Allah be pleased with her) that the Noble Prophet (peace and blessings be upon him) performed the Ish'ar of the Hadi.

Hazrat Saeed bin Jubair says that a garland will be put on the sacrificial camel and it will also be marked, and for the sacrificial cow only a garland will be put, it will not be marked, and for the sacrificial goat neither a garland will be put nor will it be marked.

Hazrat Ibn Abbas (may Allah be pleased with both of them) says that if you wish, you may perform the *Ish'ar* of the Hadi animal, and if you wish, you may not do it (it is not obligatory).