At the beginning of the 9th century (3rd century AH), Mashhad was a small city called Sanabad, which was situated 24 kilometres (15 miles) away from Tus. There was a summer palace of Humayd ibn Qahtaba, the governor of Khurasan. In 808, when Harun al-Rashid, Abbasid caliph, was passing through to quell the insurrection of Rafi ibn al-Layth in Transoxania, he became ill and died.