Surah Aal-i-Imraan, Verse 165
أَوَلَمَّآ أَصَٰبَتْكُم مُّصِيبَةٌۭ قَدْ أَصَبْتُم مِّثْلَيْهَا قُلْتُمْ أَنَّىٰ هَٰذَا ۖ قُلْ هُوَ مِنْ عِندِ أَنفُسِكُمْ ۗ إِنَّ ٱللَّهَ عَلَىٰ كُلِّ شَىْءٍۢ قَدِيرٌۭ
Translation — Sahih International
Why [is it that] when a [single] disaster struck you [on the day of Uhud], although you had struck [the enemy in the battle of Badr] with one twice as great, you said, "From where is this?" Say, "It is from yourselves." Indeed, Allah is over all things competent.
Source
Kur'an-ı Kerim, Âl-i İmrân Suresi 3:165
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/3-suresi-165-ayet