Those only are believers, who believe in God and His Messenger and who, when they are with him upon a common matter, go not away until they ask his leave. Surely those who ask thy leave -- those are they that believe in God and His Messenger; so, when they ask thy leave for some affair of their own, give leave to whom thou wilt of them, and ask God's forgiveness for them; surely God is All-forgiving, All-compassionate.