3:39 And the angels called out to him when he was standing in the sanctuary worshipping, saying, 'Allah gives you glad tidings of John, who shall confirm a Word from Allah. He shall be a master and chaste, a Prophet and from the righteous.'
3:41 He said, 'Lord, appoint for me a sign.' He said, 'Your sign is that you shall not speak to people except by signs for three days.' And remember your Lord abundantly, exalt Him in the evening and at the dawn.'