إِنَّ اللَّهَ عَزَّ وَ جَلَّ إِذَا أَحَبَّ عَبْداً، فَعَمِلَ عَمَلًا قَلِيلًا، جَزَاهُ بِالْقَلِيلِ الْكَثِيرَ، وَ لَمْ يَتَعَاظَمْهُ أَنْ يَجْزِيَ بِالْقَلِيلِ الْكَثِيرَ لَهُ.
Imam Ja‘far al-Ṣadiq (as):
When God loves a servant and he performs a small good act, God gives him a great reward for that small act, and it is not a grave matter for God to endow someone with such a great reward for a small act of goodness.
Source:
al-Kāfī
Vol3
P223
ID: 16801