Source: The Great Interpretation of Dreams (Ibn Sirin)
The fortune-teller in a dream is a lying man who claims knowledge of the unseen. Believing him indicates misguidance.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
The fortune-teller indicates a man who leads people into strife. Whoever sees himself becoming a fortune-teller falls into strife.
Source: Signs in the Science of Expressions (Ibn Shaheen)
The fortune-teller is interpreted as worry. Whoever sees himself asking him a question will be afflicted with worry.