It is narrated from Hazrat Ya'la (may Allah be pleased with him) that once a man came to the service of the Prophet (peace and blessings be upon him) wearing a very large (heavy) gold ring. The Prophet (peace and blessings be upon him) asked him, "Do you pay its zakat?" He asked, "O Messenger of Allah (peace and blessings be upon him), what is its zakat?" When he went back, the Prophet (peace and blessings be upon him) said, "This is a very large spark (of fire) for him."