Coal is in a dream a dangerous man . And it was said : It is forbidden money . And it was said : It is the livelihood of the Sultan . And whoever saw that coal was burned in it, then he is a tested man, and the Sultan wronged him and took his money as a punishment . And coal in the winter is money . And whoever sees that a man has given him a Nubian slave, a gift of sacks of charcoal will come to him . And it was said : Everything that is burned in the fire is evidence of immorality .