﴿ إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ إِنَّا لَا نُضِيعُ أَجْرَ مَنْ أَحْسَنَ عَمَلًا ﴾

“[But,] behold, as for those who attain to faith and do righteous deeds-verily, We do not fail to requite any who persevere in doing good:”

Truly those who believe and perform righteous deeds — indeed We do not leave the reward of those of good deeds to go to waste this last sentence is the predicate of the previous inna’lladhīna ‘truly those who’ and in it an overt identification of the recipients of the reward has replaced the would-be pronominalisation in other words it is ‘their reward’ which shall not be left to go to waste and We will reward them with what it the reward of good-doers comprises.