When a non-believer does good he is made to taste Its reward in this world. And so far as the believer is concerned, Allah stores (the reward) of his virtues for the Hereafter and provides him sustenance in accordance with his obedience to Him.

عَنْ رَسُولِ اللَّهِ ﷺ إِنَّ الْكَافِرَ إِذَا عَمِلَ حَسَنَةً أُطْعِمَ بِهَا طُعْمَةً مِنَ الدُّنْيَا وَأَمَّا الْمُؤْمِنُ فَإِنَّ اللَّهَ يَدَّخِرُ لَهُ حَسَنَاتِهِ فِي الآخِرَةِ وَيُعْقِبُهُ رِزْقًا فِي الدُّنْيَا عَلَى طَاعَتِهِ