وَكَذٰلِكَ فَتَنّا بَعضَهُم بِبَعضٍ لِيَقولوا أَهـٰؤُلاءِ مَنَّ اللَّهُ عَلَيهِم مِن بَينِنا ۗ أَلَيسَ اللَّهُ بِأَعلَمَ بِالشّاكِرينَ

We test some people through others, so they may ask, “Are these the ones God favored among us?” Doesn’t God know best those who are thankful?