Question Summary:
Can you sacrifice an animal for qurbani if the animal has a number tag pinned to a ear of the animal?

Question Detail:

Can you sacrifice an animal for qurbani if the animal has a number tag pinned to a ear of the animal?

Answer :

In the name of Allah, Most Gracious, Most Merciful
Assalaamu `alaykum waRahmatullahi Wabarakatoh
It is permissible to sacrifice such an animal. The pinning of a tag on the ear of the animal is not regarded to be a defect in the ear.
And Allah knows best
Wassalam
Mufti Ebrahim Desai
Darul Iftaa, Madrassah In'aamiyyah