Surah Al-Imran, ayah 140

3:140

إِن يَمۡسَسۡكُمۡ قَرۡحٞ فَقَدۡ مَسَّ ٱلۡقَوۡمَ قَرۡحٞ مِّثۡلُهُۥۚ وَتِلۡكَ ٱلۡأَيَّامُ نُدَاوِلُهَا بَيۡنَ ٱلنَّاسِ وَلِيَعۡلَمَ ٱللَّهُ ٱلَّذِينَ ءَامَنُواْ وَيَتَّخِذَ مِنكُمۡ شُهَدَآءَۗ وَٱللَّهُ لَا يُحِبُّ ٱلظَّٰلِمِينَ ١٤٠

In yamsaskum qarhun faqad massal-qawma qarhum mithluhū watilkal-ayyāmu nudāwiluhā baynan-nāsi waliya'lamallāhul-ladhīna āmanū wayattakhidha minkum shuhadā'a wallāhu lā yuhibbuz-zālimīn

If a wound should touch you - there has already touched the [opposing] people a wound similar to it. And these days [of varying conditions] We alternate among the people so that Allāh may make evident those who believe and [may] take to Himself from among you martyrs - and Allāh does not like the wrongdoers -