Noun
musalla (plural musallas)
(Islam) A place for praying (e.g. outside a mosque); a praying room.
In the archaeological artifacts hall of the museum, the majority of the artifacts exhibited consist of the ones found in the excavations in the Acropolis, Asklepion, Red Courtyard (Basilica) and Musalla Cemetery. Source: Internet
In Tehran, some 4,000 people gathered at the Musalla prayer ground in central Tehran for the rally. Source: Internet