The Tomb of Rabi Ibn Khosaim, known as Khajeh Rabi, ruler of Rey during the reign of Imam Ali (AS), is situated in the center of a massive garden, at the end of Khajeh Rabi Street.
This building was on the suggestion of Sheikh Bahai to Shah Abbas Safavid and with the assistance of Oloq-Orazavi-Olkhadem constructed at the end of the 16th century AD.
The outer design of the tomb is octagonal and internally four-terraced. There is a terrace built on each of the outer walls, from those on the larger walls, corridors are leading indoors, and those on the smaller walls are small and on two floors. On the roof, an onion-shaped turquoise dome (18 m height from the floor) is constructed.
The utilization of colored tiles on the outside facade, golden painting on the inside wall coverings, two cornices of Ali-Reza Abbasi’s script (1607 & 1619), has given a special appearance to this building.
Single colored mosaic tiles bearing artistic designs decorate the cornices. Paintings on inside walls have Flower, Leaf, and Arabesque designs, which reached the ornament (Sun design) on the top of the dome and have been decorated with bright colors and thin golden sheets.
His mausoleum is one of the tourist attractions in Mashhad, northeast of Iran.
Khajeh Rabi Mausoleum and the surrounding gardens are a tourist attraction, as well as one of the major cemeteries for the residents of Mashhad and the surrounding towns and villages.