 Complete the following phrase:  Bishrs son Abd al-Malik was appointed the deputy governor of Basra by his uncle, the governor of Iraq Maslama ibn Abd al-Malik, in 720, but was dismissed that year by Maslamas successor Umar ibn Hubayra al-Fazari. In 740, Abd al-Malik provided safe haven to Yahya, the son of Zayd ibn Ali, from the governor Yusuf ibn Umar al-Thaqafi in the aftermath of Zayds abortive revolt against the Umayyads until Yahya could flee for Khurasan. Abd al-Malik was executed by the Abbasid dynasty in 750 after the 