The ruling on saying: “On behalf of so-and-so” when slaughing another person’s ‘Id sacrifice

Question : He is not required to say “on behalf of so-and-so,” because the intention is sufficient.

Answer : If he says “on behalf of so-and-so,” that is good, just as one says, “O Allah, accept this on behalf of Muhammad and the family of Muhammad.” He says this on behalf of so-and-so. Yes.