Ali 'Imran · Ayah 166
وَمَآ أَصَٰبَكُمْ يَوْمَ ٱلْتَقَى ٱلْجَمْعَانِ فَبِإِذْنِ ٱللَّهِ وَلِيَعْلَمَ ٱلْمُؤْمِنِينَ
And what struck you on the day the two armies met [at Uḥud] was by permission of Allāh that He might make evident the [true] believers
Quran 3:166 (Ali 'Imran) · Saheeh International, Noor International Center (QuranEnc v1.1.2)