Abu Hurairah (May Allah be pleased with him) reported that the Messenger of Allah (peace and blessings of Allah be upon him) said:

“Any person who possesses gold or silver and does not pay what is due on it (i.e., the Zakat); on the Day of Resurrection, sheets of silver and gold would be heated for him in the fire of Hell and with them his flank, forehead and back will be branded. When they cool down, they will be heated again and the same process will be repeated during the day the measure whereof will be fifty thousand years. (This would go on) until Judgment is pronounced among (Allah’s) slaves, and he will be shown his final abode, either to Jannah or to Hell