Surah Ar-Rum 30:48

ٱللَّهُ ٱلَّذِى يُرْسِلُ ٱلرِّيَـٰحَ فَتُثِيرُ سَحَابًا فَيَبْسُطُهُۥ فِى ٱلسَّمَآءِ كَيْفَ يَشَآءُ وَيَجْعَلُهُۥ كِسَفًا فَتَرَى ٱلْوَدْقَ يَخْرُجُ مِنْ خِلَـٰلِهِۦ ۖ فَإِذَآ أَصَابَ بِهِۦ مَن يَشَآءُ مِنْ عِبَادِهِۦٓ إِذَا هُمْ يَسْتَبْشِرُونَ

It is Allāh who sends the winds, and they stir the clouds and spread them in the sky however He wills, and He makes them fragments so you see the rain emerge from within them. And when He causes it to fall upon whom He wills of His servants, immediately they rejoice

Translation: Saheeh International

Tafsir

God is the One Who unleashes the winds which then raise stir up clouds and He then spreads them across the heaven as He will in small or large quantities and He forms them into fragments read kisafan or kisfan ‘scattered pieces’ then you see the rain issuing out of them that is out of the midst of them. …

Excerpt from Tafsir al-Jalalayn, commentary on 30:48, via Quran.com. The reader has the full commentary and 9 more tafsirs.