Surah Al-Kahf

Praise belongs to Allah who has sent down the Book to His worshiper (Prophet Muhammad) and has not made any crookedness in it,

unswerving. To warn of great violence from Him, and to give good tidings to the believers who do good deeds that theirs shall be a goodly wage

and they will live for ever therein.

And it (the Koran) warns those who say: 'Allah has taken a son. '

. Surely, of this they have no knowledge, neither they nor their fathers; it is a monstrous word that comes from their mouths, they say nothing but a lie.