Once built, the mosque will look like the Masjid al-Nabi in the city of Medina, Saudi Arabia, al-Wikala website reported.
It will accommodate up to 50,000 worshippers and will include an Islamic school, a library of Islamic books and a hotel.
The report did not say when the mosque will be completed and ready to welcome worshippers.
The Republic of Dagestan is a predominantly Muslim republic of Russia located in the North Caucasus region.
http://iqna.ir/fa/inter/News/2957700