Dalil

Quran Fatir 35:29

إِنَّ ٱلَّذِينَ يَتۡلُونَ كِتَٰبَ ٱللَّهِ وَأَقَامُواْ ٱلصَّلَوٰةَ وَأَنفَقُواْ مِمَّا رَزَقۡنَٰهُمۡ سِرّٗا وَعَلَانِيَةٗ يَرۡجُونَ تِجَٰرَةٗ لَّن تَبُورَ

Translation

Indeed, those who recite the Book of Allāh and establish prayer and spend [in His cause] out of what We have provided them, secretly and publicly, [can] expect a transaction [i.e., profit] that will never perish -