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.

9:83If God brings you back to a party of them, and they ask your permission to go out, say, “You will not go out with me, ever, nor will you ever fight an enemy with me. You were content to sit back the first time, so sit back with those who stay behind.”