وَإِنَّ مِنكُمْ لَمَن لَّيُبَطِّئَنَّ فَإِنْ أَصَابَتْكُم مُّصِيبَةٌ قَالَ قَدْ أَنْعَمَ اللّهُ عَلَيَّ إِذْ لَمْ أَكُن مَّعَهُمْ شَهِيدًا
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سورة النساء
(4/72) And there is certainly among you he who would linger behind (delays on going to war) If then a misfortune befalls you he says: “Surely Allah conferred a blessing on me that I was not martyred with them”.
Surah An-Nisa