It is narrated from Hazrat Abu Hurairah (may Allah be pleased with him) that one day we were sitting with the Noble Prophet (peace and blessings be upon him) when we heard a loud sound. The Noble Prophet (peace and blessings be upon him) said, "Do you know what this sound is?" We replied, "Allah and His Messenger (peace and blessings be upon him) know best." He said, "This is the sound of a stone which was thrown into Hell seventy years ago; that stone has now reached its bottom."