9:80Whether you ask forgiveness for them, or do not ask forgiveness for them—even if you ask forgiveness for them seventy times, God will not forgive them. That is because they disbelieved in God and His Messenger. God does not guide the immoral people.

9:113It is not for the Prophet and those who believe to ask forgiveness for the polytheists, even if they are near relatives, after it has become clear to them that they are people of Hellfire.

9:114Abraham asked forgiveness for his father only because of a promise he had made to him. But when it became clear to him that he was an enemy of God, he disowned him. Abraham was kind and clement.