Word by Word Analysis

وَأَمَّا ٱلْغُلَـٰمُ فَكَانَ أَبَوَاهُ مُؤْمِنَيْنِ فَخَشِينَآ أَن يُرْهِقَهُمَا طُغْيَـٰنًا وَكُفْرًا 80

And as for the boy, his parents were believers, and we feared that he would overburden them by transgression and disbelief.