Surah Ash-Shuraa — Ayah 27 (42:27)
۞ وَلَوۡ بَسَطَ ٱللَّهُ ٱلرِّزۡقَ لِعِبَادِهِۦ لَبَغَوۡاْ فِي ٱلۡأَرۡضِ وَلَٰكِن يُنَزِّلُ بِقَدَرٖ مَّا يَشَآءُۚ إِنَّهُۥ بِعِبَادِهِۦ خَبِيرُۢ بَصِيرٞ ٢٧
English translation (Saheeh International)
And if Allāh had extended [excessively] provision for His servants, they would have committed tyranny throughout the earth. But He sends [it] down in an amount which He wills. Indeed He is, of His servants, Aware and Seeing.
Brief commentary
If Allah had to expand the provision for all of His servants, they would have transgressed on earth by oppression. But He, (may He be glorified), sends down provision to the extent that He wills to expand or narrow it. He is well aware and observant of the states of His servants. He gives for a reason and withholds for a reason also.