The Tomb of Khajeh Rabie (Persian: آرامگاه خواجه ربیع) is a historic mausoleum located in Mashhad, Iran. The entombed one is attributed to have been Al-Rabi ibn Khuthaym, one of the early Tabi'een and a companion of Ali ibn Abi Talib. The mausoleum is number 412 on the list of national monuments of Iran.
History.
The tomb of Al-Rabi already existed at the site after his death, and it was also visited by the eight Imam, Ali ibn Musa al-Ridha. The current mausoleum was first constructed in the 16th century under the reign of Shah Abbas I. He ordered the construction of the mausoleum to be carried out under the recommendation and advice of the Shi'ite cleric Baha al-Din al-Amili. Later in 1726, the former Safavid governor of Astarabad, Fath-Ali Khan Qajar, was buried outside the mausoleum.
Architecture.
The mausoleum building is octagonal in shape. Four large iwans are on the middle of each side on the exterior. Surrounding the mausoleum is a large garden. 
An 18-metre dome, covered in turquoise tiles, tops the mausoleum. The tile work around the building is of matching colours. Inside the mausoleum, the tomb of Al-Rabi ibn Khuthaym is located underneath the large dome. There are also inscriptions written by calligraphers from the Safavid era, in the style of Thuluth and Bannai, are present within the building.
See also.
List of mausoleums in Iran