Islamic Interpretation of Dreams (Ibn-i Sirin):

(Knighthood; Robe) To put on a new raiment in a dream means a knighthood for a person who has lost his rank or position.

It also means rising in station for an appointed person, wearing a new garment, or having constant disputes with one’s wife. Wearing a new raiment in a dream also could represent one’s love to preside over others or to be perceived as a great person.