[2][3][4] Blending Andalusian and Moorish styles, it features Brunei's first retractable roof, Moroccan mosaics, and an Italian dome, accommodating 700 worshippers.

The Minister of Religious Affairs Pengiran Mohammad led the call of "Allahu Akbar" after the sultan signed a commemorative plaque to mark the occasion.

Then, under the direction of State Mufti Abdul Aziz Juned, the sultan and the royal entourage joined the congregation for Friday prayers.

[2] The Ash-Shaliheen Mosque, spanning 2,100 square metres (23,000 sq ft) and accommodating up to 700 worshippers,[b] showcases a blend of Andalusian and Moorish Maghrebi architecture.

[7] It is Brunei's first mosque with a retractable roof[8] and offers modern amenities, including a multipurpose hall, separate restrooms and ablution areas for men and women, an imam’s office, and parking facilities for approximately 130 vehicles.