Jame' 'Asr Hassanil Bolkiah is a waqf of Sultan Hassanal Bolkiah, the 29th and current Sultan of Brunei. The construction began in 1988 on a 20-acre site in Kiarong. The mosque was inaugurated on 14 July 1994 with the Sultan attending the Maghrib and Isha prayers in conjunction with His Majesty's 48th birthday celebration.

The mosque can accommodate 5,000 worshippers at a time, making it the largest mosque in the country.

The mosque has 29 golden domes and four minarets with height of 58 metres (190 feet).

According to wikipedia