21وَإِن مِن شَيءٍ إِلّا عِندَنا خَزائِنُهُ وَما نُنَزِّلُهُ إِلّا بِقَدَرٍ مَعلومٍQaribullah & DarwishAnd there is not a thing but with Us are its treasuries, and We do not send it down except in a known measure.