God is the One who increases the provision for whomever He chooses from among His creatures, and withholds it. God is fully aware of all things.
اللَّهُ يَبسُطُ الرِّزقَ لِمَن يَشاءُ مِن عِبادِهِ وَيَقدِرُ لَهُ إِنَّ اللَّهَ بِكُلِّ شَىءٍ عَليمٌ
allaahu yabsutur rizqa limany yashaaa’u min ‘ibaadihee wa yaqdiru lah; innal laaha bikulli shai’in Aleem