UShR (arabi- dahyak), dar mamlakathoi musulmoni andozest, ki ba miqdori dahyaki hosil (har sol az dehqonon, chorvodoron va mohigiron) sitonida meshud. Dar ibtido ushrro az saidho, ruhoniyoni kalon, inchunin baze amiron va az khalqhoi nohiyahoi «ikhtiyoran ba lashkari islom taslimshuda» megiriftand. Obu zaminero, ki az on ushr mesitonidand, «mulki ushriya» menomidand. Dar zamonhoi gunogun vobasta ba sharoiti mahal nomi ushr niz tagyir meyoft. Masalan, dar imperiyai Usmoniya onro iqto, dimos, unta, untalik, salaria, dar Eronu amorati Bukhoro dahyak meguftand. Dar Osiyoi Miyona badi galabai Revolyutsiyai Kabiri Sosialistii Oktyabr barham khurdaast.