(Lo! as for those who believe) in Muhammad (pbuh) and in the Qur'an (and do good works) and do acts of obedience between them and their Lord, (for them is a reward enduring) and undiminished; it is also said that the reward of their works will be registered after they reach old age or die and will be recorded undiminished until the Day of Judgement.
- 41:88
إِنَّ الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ لَهُمْ أَجْرٌ غَيْرُ مَمْنُونٍ
But those who believe and do the right, will have a continuing reward.
- common.revelation-Meccan
- common.hizb : 190