Quran 26:173 from Surah Ash-Shu'araa on Divine Marvels.
وَأَمۡطَرۡنَا عَلَيۡهِم مَّطَرٗاۖ فَسَآءَ مَطَرُ ٱلۡمُنذَرِينَ
English translation: And We rained upon them a rain and evil was (was) the rain (on) those who were warned
Transliteration: wa-amtarna alayhim mataran fasaa mataru al-mundharina