Surah Al-Isra 17:100

قُل لَّوْ أَنتُمْ تَمْلِكُونَ خَزَآئِنَ رَحْمَةِ رَبِّىٓ إِذًا لَّأَمْسَكْتُمْ خَشْيَةَ ٱلْإِنفَاقِ ۚ وَكَانَ ٱلْإِنسَـٰنُ قَتُورًا

Say [to them], "If you possessed the depositories of the mercy of my Lord, then you would withhold out of fear of spending." And ever has man been stingy.

Translation: Saheeh International

Tafsir

Say to them ‘If you possessed the treasuries of my Lord’s mercy those treasuries of provision and rain you would surely withhold them you would stint for fear of spending fearing that they would be depleted if one spent from them and that you would then become impoverished; and man is ever niggardly’.

Excerpt from Tafsir al-Jalalayn, commentary on 17:100, via Quran.com. The reader has the full commentary and 9 more tafsirs.