﴿ ٱللَّهُ يَبْسُطُ ٱلرِّزْقَ لِمَن يَشَآءُ مِنْ عِبَادِهِۦ وَيَقْدِرُ لَهُۥٓ ۚ إِنَّ ٱللَّهَ بِكُلِّ شَىْءٍ عَلِيمٌۭ ﴾

“God grants abundant sustenance, or gives it in scant measure, to whichever He wills of His crea­tures: for, behold, God has full knowledge of every­thing.”

Please check ayah 29:63 for complete tafsir.