On the Day when heat will be produced out of that (wealth) in the fire of Hell, and with it will be branded their foreheads, their flanks, and their backs, their flanks, and their backs.- “This is the (treasure) which ye buried for yourselves: taste ye, then, the (treasures) ye buried!”
The Prophet said of this verse that wealth accumulated by Muslims from which the zakah tax was not paid is also included as a source of condemnation on the Day of Judgment. (Abu Dawud, Ahmad)
Emerick, Yahiya. The Meaning of the Holy Qur’an in Today’s English (p. 829). Unknown. Kindle Edition.