Faith as a Condition for Reward

فَمَن يَعْمَلْ مِنَ ٱلصَّـٰلِحَـٰتِ وَهُوَ مُؤْمِنٌ فَلَا كُفْرَانَ لِسَعْيِهِۦ وَإِنَّا لَهُۥ كَـٰتِبُونَ

So whoever does righteous deeds while he is a believer - no denial will there be for his effort, and indeed We [i.e., Our angels], of it, are recorders.