Chashma-Ayub belongs to esteemed "places of trace" ("kadamjoi") left by saint persons. A legend says that Prophet Job (Ayub) once visited this place. An impact of his staff made a well ("chashma"). Its water is still pure and considered curative. Legends inform that a cultic construction existed here in the 12th century. Inscrip­tion on the portal says that today's con­struction was built in the time of Amir Temur. Characteristic feature of Chashma- Ayub is a conic dome, typical for Khorezm architecture of 13th—14th centuries. Proba­bly, Khorezm masters brought to Bukhara by Temur were the builders of Chashma- Ayub.