Al-Kahf - 18:30

إِنَّ الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ إِنَّا لَا نُضِيعُ أَجْرَ مَنْ أَحْسَنَ عَمَلًا
[18:30]
Surely (as for) those who believe and do good, We do not waste the reward of him who does a good work.
As to those who believe and work righteousness, verily We shall not suffer to perish the reward of any who do a (single) righteous deed.
Lo! as for those who believe and do good works - Lo! We suffer not the reward of one whose work is goodly to be lost.