"And others bound together in fetters," meaning in chains. None of them were subjugated or employed in these tasks except the disbelievers; if they believed, he would release them from those fetters.
﴿وَآخَرين مُقرنين فِي الأصفاد﴾ فِي السلَاسِل , وَلم يكن يُسَخَّر مِنْهُم وَيسْتَعْمل فِي هَذِه الْأَشْيَاء وَلَا يصفَّد إِلَّا الْكفَّار؛ فَإِذا آمنُوا حلَّهم من تِلْكَ الأصفاد
