Source: The Great Interpretation of Dreams (Ibn Sirin)
Extinguished coal in a dream indicates a man who was dangerous but whose danger has passed, or unlawful money whose bad effect has gone.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Extinguished coal indicates the end of worry or strife.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Extinguished coal is interpreted as the end of worry.