Is it better to visit my father's grave, or to make du'a' for him and give charity without visiting his grave?

Question:
He asks: Is it permissible for me to visit my father's grave, or is it sufficient to make du'a' for him and give charity? Because I feel that I am falling short in my duty to my father if I do not visit him in the cemetery?

Answer:
If both things happen, you visit him and make du'a' for him at the grave, and you also give charity on his behalf; this is better. And if you are unable to visit, it is sufficient to make du'a' for him, give charity, and seek forgiveness for him.