Source: The Great Interpretation of Dreams (Ibn Sirin)
Intercourse in a dream indicates achieving one's goal and attaining position and exaltation. Intercourse with relatives indicates cutting family ties.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Intercourse indicates fulfilling a need and the end of worry. Intercourse with a dead person indicates achieving a despaired matter.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Intercourse is interpreted as goodness and benefit. Whoever sees himself having intercourse with his wife will attain goodness.