إِنَّ اللَّهَ لَا يَظْلِمُ مِثْقَالَ ذَرَّةٍ وَإِنْ تَكُ حَسَنَةً يُضَاعِفْهَا وَيُؤْتِ مِنْ لَدُنْهُ أَجْرًا عَظِيمًا
Surely, Allah shall not harm so much as the weight of an atom, and if it is a good deed He will double it, and give from His Own a great wage.