Description The Sultan Salahuddin Abdul Aziz Shah Mosque (Malay: Masjid Sultan Salahuddin Abdul Aziz) is the state mosque of Selangor, Malaysia. It is located in Shah Alam. It is the country's largest mosque and also the second largest mosque in Southeast Asia after Istiqlal Mosque in Jakarta, Indonesia. Its most distinguishing feature is its large blue and silver dome. The mosque has four minarets, one erected at each of the corners.