إِذْ تُصْعِدُونَ وَلاَ تَلْوُونَ عَلَى أحَدٍ وَالرَّسُولُ يَدْعُوكُمْ فِي أُخْرَاكُمْ فَأَثَابَكُمْ غُمَّاً بِغَمٍّ لِّكَيْلاَ تَحْزَنُواْ عَلَى مَا فَاتَكُمْ وَلاَ مَا أَصَابَكُمْ وَاللّهُ خَبِيرٌ بِمَا تَعْمَلُونَ
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سورة آل عمران
(3/153) You fleeing (the mountain) without looking aside at anyone while the Messenger (of Allah) was calling you from behind, so grief after grief befell you, so that you might not grieve for what you missed (victory, booty) or what befell you (calamities). And Allah is Well-Aware of all that you do.
Surah Al Imran