﴿ وَأَمْطَرْنَا عَلَيْهِم مَّطَرًۭا ۖ فَسَآءَ مَطَرُ ٱلْمُنذَرِينَ ﴾

“and rained down upon them a rain [of destruction]: and dire is such rain upon all who let themselves be warned [to no avail]!”

and We rained on them a rain We rained on them stones — this detail pertains to the previous statement concerning their destruction — and evil was their rain the rain of those who were warned!