An-Nisa' - 4:72

وَإِنَّ مِنكُمْ لَمَن لَّيُبَطِّئَنَّ فَإِنْ أَصَابَتْكُم مُّصِيبَةٌ قَالَ قَدْ أَنْعَمَ اللّهُ عَلَيَّ إِذْ لَمْ أَكُن مَّعَهُمْ شَهِيدًا
[4:72]
And surely among you is he who would certainly hang back! If then a misfortune befalls you he says: Surely Allah conferred a benefit on me that I was not present with them.
There are certainly among you men who would tarry behind: If a misfortune befalls you, they say: "Allah did favour us in that we were not present among them."
Lo! among you there is he who loitereth; and if disaster overtook you, he would say: Allah hath been gracious unto me since I was not present with them.