He it is who has sent down to thee the book: in it are verses
Basic or fundamental (of established meaning);
They are the foundation of the book: others are allegorical.
But those in whose hearts is perversity follow the part
Thereof that is allegorical, seeking discord, and searching
For its hidden meanings, but no one knows its hidden
Meanings except Allah. And those who are firmly grounded
In knowledge say: "we believe in the book; the whole of it
Is from our lord: "and none will grasp the message except
Men of understanding.