Abu al-Fayz Khan (Chagatai and Persian: ابو الفیض خان; 1687-1747) was the Janid ruler of the Khanate of Bukhara from 1711 to 1747.
[1] The two rulers reached an agreement in which Abu al-Fayz was confirmed as king of Turkestan, Nader Shah married Abu al-Fayz's daughter, and Muhammad Hakim Khan, a quasi-independent governor of Qarshi, was appointed as the ataliq.
[2] By the time Nader Shah defeated Abu al-Fayz, the khanate of Bukhara existed only in name.
[3] After rebellions broke out in Transoxania in 1743 that lead to the death of Muhammad Hakim, Nader Shah sent Hakim's son, Muhammad Rahim Bey, with 4,000 Qizilbash to help Abu al-Fayz Khan pacify the rebellions.
[4][3] After the death of Nader Shah in 1747, Muhammad Rahim Bey executed Abu al-Fayz Khan and established the Mangit dynasty.