وَأَمْطَرْنَا عَلَيْهِم مَّطَرًا فَسَآءَ مَطَرُ ٱلْمُنذَرِينَ
And We rained upon them a rain, and how bad was the rain of those who had been warned.
Roots in this verse: م ط ر (mTr), س و ا (swA), ن ذ ر (n*r)