Fussilat • EN-TAFSIR-IBN-ABBAS
﴿ إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ لَهُمْ أَجْرٌ غَيْرُ مَمْنُونٍۢ ﴾
“[But,] verily, they who have attained to faith and do good works shall have a reward unending!”
(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.