Arystan Bab Mausoleum is a XIV century mausoleum built for Arystan Bab, who was a famous religious leader. According to the legend, Arystan-Bab was one of the companions of the Prophet Muhammad. Once the Prophet Muhammad and his companions were sitting and eating persimmons. One of the fruits all the time was falling out of the dish, and the prophet heard the revelation: “This persimmon is intended for a Muslim Ahmed, who will be born 400 years after you”. The Prophet asked his companions, who transmitted this persimmon to its future owner. No one volunteered. The Prophet repeated his question, and then Arystan-Bab replied: “If you ask Allah for 400 years of life more, then I will give this persimmon. According to folk tradition and written sources ( “Risolai Sarem-Isfizhob” and the book of Kuprilozada), Arystan-Bab through 400 years, became the instructor of Khoja Ahmed Yassawy and actually gave him the persimmon.