Pondok Pesantren Bi Ba’a Fadlrah, Islamic boarding school in Sananrejo, Malang, Indonesia

Pondok Pesantren Bi Ba’a Fadlrah is a ten-storey Islamic boarding school and mosque complex on Jalan KH. Wahid Hasyim in Sananrejo, Turen. Its white and cobalt-blue façade rises through stacked octagonal towers and a tall tiered minaret set against blue tile. Inside, a spiral staircase links the floors, which hold dormitories, small shops run by female students, and a historical museum on levels 2 and 3.

Romo Kiai Haji Ahmad Bahru Mafdlaluddin Shaleh Al-Mahbub Rahmat Alam began the pesantren in 1963, and construction on the 4-hectare site started in 1978. The main building reached 10 floors by 2008, built by about 250 santri using simple tools and red brick with clay mortar, without heavy machinery.

The complex is a salafiyah pesantren, not a mosque: its long Arabic name Bihaaru Bahri 'Asali Fadlaailir Rahmah means "seas of honey" in Javanese. Santri run small shops on floors 5, 7 and 8 selling sarongs, prayer mats, hijabs and prayer beads, and a pool with a children's boat and enclosures with deer, monkeys and rabbits sit inside the grounds.

The complex sits on Jalan KH. Wahid Hasyim, Gang Anggur No. 10, in Sananrejo, Turen. Only about 1.5 of its 4 hectares are built up, so the rest is open ground with the fruit orchard, canteen and children's playground. The ten floors are linked by a spiral staircase, and floors 5, 7 and 8 hold small shops run by female students.

Locals call it Masjid Tiban, the "sudden mosque", claiming it appeared overnight, built by jinn without the villagers' knowledge. A notice at the reception desk rejects this: the complex was built openly by santri and worshippers. Construction began in 1978 and was completed in 2008.