18:80
وَأَمَّا ٱلْغُلَـٰمُ فَكَانَ أَبَوَاهُ مُؤْمِنَيْنِ فَخَشِينَآ أَن يُرْهِقَهُمَا طُغْيَـٰنًا وَكُفْرًا
wa-ammā l-ghulāmu fakāna abawāhu mu'minayni fakhashīnā an yur'hiqahumā ṭugh'yānan wakuf'ran
The young boy had parents who were people of faith, and so, fearing he would trouble them through wickedness and disbelief,
"And as for the boy, his parents were believers, and we feared lest he should oppress them by rebellion and disbelief.