Ma'arif al-Qur'an
Mufti Muhammad Shafiمِنَ السَّمَاءِ مِن جِبَالٍ فِيهَاFrom 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.