Source: The Great Interpretation of Dreams (Ibn Sirin)
Listening in a dream indicates accepting truth or falsehood depending on what is being listened to. Listening to the Quran is guidance, and to singing is amusement and falsehood.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Listening indicates obedience and following. Whoever sees himself listening to advice is being guided.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Listening to good is interpreted as good, and to evil as evil. Whoever sees himself listening to good words will attain goodness.