Have you not seen those who were forbidden to whisper? Then they started doing the same that they were forbidden to do. And they whisper about sin and revolt and disobedience to the (Holy) Messenger (blessings and peace be upon him) and when they come to your presence they greet you with the (unbecoming) words with which Allah has not greeted you and say in their hearts: ‘(If this Messenger is truthful then) why Allah does not punish us for what we say?’ (The punishment of) Hell is sufficient for them. They will enter it and it is an extremely evil abode.