Quran 3:165

أَوَلَمَّآ أَصَـٰبَتۡكُم مُّصِيبَةٌ۬ قَدۡ أَصَبۡتُم مِّثۡلَيۡہَا قُلۡتُمۡ أَنَّىٰ هَـٰذَا‌ۖ قُلۡ هُوَ مِنۡ عِندِ أَنفُسِكُمۡ‌ۗ إِنَّ ٱللَّهَ عَلَىٰ كُلِّ شَىۡءٍ۬ قَدِيرٌ۬ ١٦٥

Now that you have suffered a setback, and even though you inflicted twice as much suffering (upon your enemy), you said, "Why did this happen to us?" Say, "This is a consequence of your own deeds." ALLAH is Omnipotent over all things and matters.