Fussilat - 41:8

إِنَّ الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ لَهُمْ أَجْرٌ غَيْرُ مَمْنُونٍ
[41:8]
(As for) those who believe and do good, they shall surely have a reward never to be cut off.
For those who believe and work deeds of righteousness is a reward that will never fail.
Lo! as for those who believe and do good works, for them is a reward enduring.