(vars. Ṭurs̲h̲īs̲h̲, Ṭurt̲h̲īt̲h̲, Ṭurayt̲h̲īt̲h̲), a town of the mediaeval region of Bus̲h̲t of Ḳuhistān [q.v.] in northeastern Persia. It lay to the southwest of Nīs̲h̲āpūr. Its site was probably to the west of the present town of Kas̲h̲mar.
The 4th/10th century geographers describe it as a flourishing town, and al-Muḳaddasī, 318, says that its Friday mosque recalled that of Damascus in its splendour, and that it was “the emporium of Fārs and Iṣfahān and the storehouse of K̲h̲urasan”. At the end of the 5th/11th century, with Tūn [q.v.] and other places it became one of the centr…