Verse 18

إِنَّ ٱلْمُصَّدِّقِينَ وَٱلْمُصَّدِّقَـٰتِ وَأَقْرَضُوا۟ ٱللَّهَ قَرْضًا حَسَنًا يُضَـٰعَفُ لَهُمْ وَلَهُمْ أَجْرٌ كَرِيمٌ

Indeed the charitable men and the charitable women who give God a loan of righteousness, it will be increased for them manifold, and they have deserved a generous recompense.