Under the 'Abbasid dynasty, qadis in Kufa differed from those in Medina in their origin, personal connections and scholastic tendencies. In Kufa, the influence of Ibrahim Nakha'i, Ibn Abi Layla and Abu Hanifa was strong, and their relatives and disciples assumed the post of gadis. There were political strives behind the appointment and dismissal of qadis. Sharik became a qadi after Ibn Abi Kayla who was cooperative with the government, but he lost his post due to the persecution of unorthodoxy in the reign of al-Mahdi. After Abu Yusuf assumed the post of a qadi al-qudat, many disciples of Abu Hanifa became qadis in Kufa in the days of Barmakid and al-Ma'mun. Liberal tendencies in Iraq in those days appear to have been reflected in the views of qadis and lawyers of Kufa.This tendency and pro-Shi'ite trends in Kufa came into conflict with the qadis and lawyers in Medina. Among the qadis of Medina there were few scholars who studied law and Hadith, but people of the Bakr and 'Umar families, who were descendents of Abu Bakr and 'Umar condemned by the Shi'ites held many posts of qadis in Medina. It may be said that they were able to manage legal and administrative affairs in the Holy Place not because of their learning but because of their authority which they derived from being descendents of powerful families.