إِنَّ اللَّهَ لا يَظلِمُ مِثقالَ ذَرَّةٍ ۖ وَإِن تَكُ حَسَنَةً يُضاعِفها وَيُؤتِ مِن لَدُنهُ أَجرًا عَظيمًا

God doesn’t do injustice, even as much as an atom’s weight; while if there is a good deed, He multiplies it and gives from Himself a great reward.