15.الْحِجْر

وَاِنۡ مِّنۡ شَىۡءٍ اِلَّا عِنۡدَنَا خَزَآٮِٕنُهٗ وَمَا نُنَزِّلُهٗۤ اِلَّا بِقَدَرٍ مَّعۡلُوۡمٍ‏

And there is not a thing (in the universe) but that We have its treasures with Us and We send it down only according to a fixed quantity.