Only those are true believers who believe in God and His Messenger, and who, when they are with him for a collective cause, do not leave unless they have obtained his permission. Surely those who ask for your permission, it is they who truly believe in God and His Messenger. So, if they ask you for permission for some affair of their own, give permission to whomever of them you will, and ask God for forgiveness on their behalf. Surely, God is All-Forgiving, All-Compassionate.