38:46
إِنَّآ أَخْلَصْنَـٰهُم بِخَالِصَةٍ ذِكْرَى ٱلدَّارِ
innā akhlaṣnāhum bikhāliṣatin dhik'rā l-dāri
We caused them to be devoted to Us through their sincere remembrance of the Final Home:
Verily, We did choose them by granting them (a good thing, - i.e.) the remembrance of the Home [in the Hereafter and they used to make the people remember it, and also they used to invite the people to obey Allâh and to do good deeds for the Hereafter].