If we want to offer a sacrifice on behalf of our father and mother, should we refrain from cutting our hair and nails?

Question:
Honorable Shaykh, may Allah grant you success. The questioner says: My brothers and sisters each live in separate houses, and every year we share the cost of the sacrifice on behalf of our father and mother. The one who takes charge of it in a given year refrains from cutting his hair and nails. Is what we are doing correct?

Answer:
No. The nails and hair are not included. If you sacrifice on behalf of someone else, you do not refrain from cutting your hair or your nails. You only refrain if you intend to sacrifice on behalf of yourself, in which case you refrain from what you are supposed to refrain from. You are like an agent. If you appoint someone to slaughter the sacrifice on your behalf, the agent refrains from cutting his hair. Yes, that is correct.