Quran

 3:154

ثُمَّ أَنْزَلَ عَلَيْكُمْ مِنْ بَعْدِ الْغَمِّ أَمَنَةً نُعَاسًا يَغْشَىٰ طَائِفَةً مِنْكُمْ ۖ وَطَائِفَةٌ قَدْ أَهَمَّتْهُمْ أَنْفُسُهُمْ يَظُنُّونَ بِاللَّهِ غَيْرَ الْحَقِّ ظَنَّ الْجَاهِلِيَّةِ ۖ يَقُولُونَ هَلْ لَنَا مِنَ الْأَمْرِ مِنْ شَيْءٍ ۗ قُلْ إِنَّ الْأَمْرَ كُلَّهُ لِلَّهِ ۗ يُخْفُونَ فِي أَنْفُسِهِمْ مَا لَا يُبْدُونَ لَكَ ۖ يَقُولُونَ لَوْ كَانَ لَنَا مِنَ الْأَمْرِ شَيْءٌ مَا قُتِلْنَا هَاهُنَا ۗ قُلْ لَوْ كُنْتُمْ فِي بُيُوتِكُمْ لَبَرَزَ الَّذِينَ كُتِبَ عَلَيْهِمُ الْقَتْلُ إِلَىٰ مَضَاجِعِهِمْ ۖ وَلِيَبْتَلِيَ اللَّهُ مَا فِي صُدُورِكُمْ وَلِيُمَحِّصَ مَا فِي قُلُوبِكُمْ ۗ وَاللَّهُ عَلِيمٌ بِذَاتِ الصُّدُورِ ﴿١٥٤﴾

154. Then, after the setback, He sent tranquility down upon you. Drowsiness overcame some of you, while others cared only for themselves, entertaining wrong thoughts about Allah—thoughts of ignorance—saying, “Is anything up to us?” Say, “Everything is up to Allah.” They hide within themselves what they do not disclose to you. And they say, “If it was up to us, none of us would have been killed here.” Say, “Even if you were in your houses, those destined to be killed would have marched into their deathbeds.” Thus Allah tests what is within you, and He purifies what is in your hearts. Allah knows what the hearts contain.