وَاَمْطَرْنَا عَلَيْهِمْ مَّطَرًاۚ فَسَاۤءَ مَطَرُ الْمُنْذَرِيْنَ ( الشعراء: ١٧٣ )
Wa amtarnaa 'alaihim mataran fasaaa'a matarul munzareen (aš-Šuʿarāʾ 26:173)
And We rained upon them a rain [of stones], and evil was the rain of those who were warned. (Ash-Shu'ara  : 173)
1 Mufti Taqi Usmani
and subjected them to a terrible rain. So evil was the rain of those who were warned.