He said: My Lord! appoint a sign for me. Said He: Your sign is that you should not speak to men for three days except by signs; and remember your Lord much and glorify Him in the evening and the morning.

What! do you wonder that a reminder has come to you from your Lord through a man from among you that he might warn you? And remember when He made you successors after Nuh's people and increased you in excellence in respect of make; therefore remember the benefits of Allah, that you may be successful.

And We have placed coverings on their hearts and a heaviness in their ears lest they understand it, and when you mention your Lord alone in the Quran they turn their backs in aversion.

And who is more unjust than he who is reminded of the communications of his Lord, then he turns away from them and forgets what his two hands have sent before? Surely We have placed veils over their hearts lest they should understand it and a heaviness in their ears; and if you call them to the guidance, they will not ever follow the right course in that case.

And We have not made the wardens of the fire others than angels, and We have not made their number but as a trial for those who disbelieve, that those who have been given the book may be certain and those who believe may increase in faith, and those who have been given the book and the believers may not doubt, and that those in whose hearts is a disease and the unbelievers may say: What does Allah mean by this parable? Thus does Allah make err whom He pleases, and He guides whom He pleases, and none knows the hosts of your Lord but He Himself; and this is naught but a reminder to the mortals.