The ruling on a guardian appointing someone else to conclude the marriage contract

Question : He says: Honorable Shaykh, may Allah grant you success. If a woman's guardian appoints one of the people to marry off his daughter while he is present in the same assembly, and he says, “Come forward, so-and-so, on my behalf and marry her off,” is that permissible and valid?

Answer : Yes, there is nothing wrong with that. It is permissible to appoint someone to conclude the contract on one’s behalf, whether he is present in the assembly or absent. Yes.