What is the ruling on raising the hands when making du'a' (supplication) for the deceased at the grave while facing the qiblah?

Question:
He says: Honorable Shaykh, may Allah grant you success, a person goes to his father's grave to visit him, and when making du'a' for him, he raises his hands in front of the grave while facing the qiblah. What is the ruling on this action?

Answer:
There is nothing wrong with raising the hands in du'a' because this is among the causes of the supplication being answered. Yes.