وَكَذَٰلِكَ فَتَنَّا بَعۡضَهُم بِبَعۡضٖ لِّيَقُولُوٓاْ أَهَٰٓؤُلَآءِ مَنَّ ٱللَّهُ عَلَيۡهِم مِّنۢ بَيۡنِنَآۗ أَلَيۡسَ ٱللَّهُ بِأَعۡلَمَ بِٱلشَّٰكِرِينَ

Wa kazaalika fatannaa ba'dahum biba'dil liyaqoolooo ahaaa'ulaaa'i mannal laahu 'alaihim mim baininaa; alaisal laahu bi-a'lama bish shaakireen

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?

— Al-An'am (ٱلْأَنْعَام), 6:53