إِنَّا أَخْلَصْنَاهُم بِخَالِصَةٍ ذِكْرَى الدَّارِ
Indeed We purified them with exclusive remembrance of the abode [of the Hereafter].
Agha Ali Puya Commentary
Commentary on Quran 38:46
[Pooya/Ali Commentary 38:46] Aqa Mahdi Puya says: "Free from all other distractions of life" means keeping in mind only the ultimate end and abode.