Surah Al-Hijr 15:21
وَإِن مِّن شَىْءٍ إِلَّا عِندَنَا خَزَآئِنُهُۥ وَمَا نُنَزِّلُهُۥٓ إِلَّا بِقَدَرٍ مَّعْلُومٍ ٢١
EnglishSahih International
And there is not a thing but that with Us are its depositories, and We do not send it down except according to a known measure.