[TRUE BELIEVERS are only they who have attained to faith in God and His Apostle, and who, whenever they are [engaged] with him upon a matter of concern to the whole community do not depart [from whatever has been decided upon] unless they have sought [and obtained] his leave. Verily, those who [do not abstain from the agreed upon action unless they] ask leave of thee - it is [only] they who [truly] believe in God and His Apostle! Hence, when they ask leave of thee for some [valid] reason of their own, grant thou this leave to whomsoever of them thou choose [to grant it,] and ask God to forgive them: for, behold, God is much-forgiving, a dispenser of grace! 62 Do not address the Messenger as you would call each other. God knows those who secretly walk away from you and hide themselves. Those who oppose the Messengers should beware, lest some trouble or a painful torment should befall them. 63 Beware! whatever is in the heavens and the earth belongs to Allah. He knows whatever you are doing. On the Day you shall return to Him, He will let you know what you have. done: He has full knowledge of everything. 64