Is there an action that can remove the sin of backbiting from the deceased?

Question:
May Allah reward you. He says: Honorable Shaykh, a Muslim man who died used to backbite some people during his life and did not seek their forgiveness in this world. Is there an action his sons can perform to remove the sin of backbiting?

Answer:
Backbiting is not removed except by the forgiveness of those who were backtalked about. So the heirs of this deceased man can ask those who backtalked about them or wronged them to forgive him. That is what is within their ability. Yes.