Sura al-Nūr 24:43

أَلَمْ تَرَ أَنَّ ٱللَّـهَ يُزْجِى سَحَابًا ثُمَّ يُؤَلِّفُ بَيْنَهُۥ ثُمَّ يَجْعَلُهُۥ رُكَامًا فَتَرَى ٱلْوَدْقَ يَخْرُجُ مِنْ خِلَٰلِهِۦ وَيُنَزِّلُ مِنَ ٱلسَّمَآءِ مِن جِبَالٍ فِيهَا مِنۢ بَرَدٍ فَيُصِيبُ بِهِۦ مَن يَشَآءُ وَيَصْرِفُهُۥ عَن مَّن يَشَآءُ يَكَادُ سَنَا بَرْقِهِۦ يَذْهَبُ بِٱلْأَبْصَٰرِ

a-lam tara annā allāha yuzjī saḥāban thumma yuʾallifu baynahu thumma yajʿaluhu rukāman fatarā l-wadqa yakhruju min khilālihi wa-yunazzilu mina l-samāʾi min jibālin fīhā min baradin fa-yuṣību bihi man yashāʾu wa-yaṣrifuhu ʿan man yashāʾu yakādu sanā barqihi yadhhabu bil-abṣāri

Seest thou not that Allah makes the clouds move gently, then joins them together, then makes them into a heap? - then wilt thou see rain issue forth from their midst. And He sends down from the sky mountain masses (of clouds) wherein is hail: He strikes therewith whom He pleases and He turns it away from whom He pleases, the vivid flash of His lightning well-nigh blinds the sight.