Source: The Great Interpretation of Dreams (Ibn Sirin)
Touching in a dream indicates marriage or connection. Touching what is not lawful indicates committing a sin.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Touching indicates achieving one's goal. Whoever sees himself touching something will attain it.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Touching is interpreted as good if it is rightful, and as evil if it is false.