Allah says: “O you who believe! Most surely many of the doctors of law and the monks eat away the property of men falsely and turn them from Allah’s way; and as for those who hoard treasures of gold and silver and do not spend them for the sake of Allah–warn them of grievous sufferings [in the life to come]. On the Day when that [hoarded wealth] shall be heated in the Fires of Hell and their foreheads and their sides and their backs branded with it, [it will be said to them:] ‘These are the treasures which you have hoarded for yourselves. Now taste of what you used to accumulate!’ [at-Taubah 34-35].” He also says: “And they should not think–they who avariously cling to all that Allah has granted them out of His bounty–that this is good for them. No, it is bad for them, for that which they hoard will be hung about their necks on the Day of Judgment” [al-‘Imran 180].
Section : Punishment in the Qur’an for the Delinquents of Zakah.