التفسير: النور ٤٤:٢٤

مِنَ السَّمَاءِ مِن جِبَالٍ فِيهَا

From the sky mountains (of clouds) having hail in them - 43.

Here the word سَمَاء is purported for clouds, and Jibal جِبَالٍ (mountains) for big masses of clouds, while hails are called Barad.