Surah Saba 34:36

قُلْ إِنَّ رَبِّى يَبْسُطُ ٱلرِّزْقَ لِمَن يَشَآءُ وَيَقْدِرُ وَلَـٰكِنَّ أَكْثَرَ ٱلنَّاسِ لَا يَعْلَمُونَ

Say, "Indeed, my Lord extends provision for whom He wills and restricts [it], but most of the people do not know."

Translation: Saheeh International

Tafsir

Say ‘Truly my Lord extends provision He makes it abundant for whomever He will as a test and restricts it for whomever He will to try them but most people such as the disbelievers of Mecca do not know’ this truth.

Excerpt from Tafsir al-Jalalayn, commentary on 34:36, via Quran.com. The reader has the full commentary and 9 more tafsirs.