Source: The Great Interpretation of Dreams (Ibn Sirin)
An empty jar in a dream indicates poverty, death of a servant, or divorce of the wife.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
An empty jar indicates a worthless secret or a matter that will not be completed.
Source: Signs in the Science of Expressions (Ibn Shaheen)
An empty jar is interpreted as poverty and worry.