It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that a black slave came and met the Prophet (peace and blessings be upon him). After some time, he passed away. The Prophet (peace and blessings be upon him) was informed. The Prophet (peace and blessings be upon him) asked: "See if he has left anything behind?" The people informed that he had left two dinars as inheritance. The Prophet (peace and blessings be upon him) said: "These are two coals of Hell."