وَكَذَٰلِكَ فَتَنَّا بَعۡضَهُم بِبَعۡضٖ لِّيَقُولُوٓاْ أَهَٰٓؤُلَآءِ مَنَّ ٱللَّهُ عَلَيۡهِم مِّنۢ بَيۡنِنَآۗ أَلَيۡسَ ٱللَّهُ بِأَعۡلَمَ بِٱلشَّٰكِرِينَ
Wakathalika fatanna baAAdahum bibaAAdin liyaqooloo ahaolai manna Allahu AAalayhim min baynina alaysa Allahu biaAAlama bialshshakireena
Thus did We try some of them by comparison with others, that they should say: "Is it these then that Allah hath favoured from amongst us?" Doth not Allah know best those who are grateful?