Abd_al-Jabbar_ibn_Ahmad
Al-Qadi Abd al-Jabbar
Mu'tazilite theologian and member of the Shafi'i school (935–1025)
Abu al-Hasan ʿAbd al-Jabbar ibn Ahmad ibn Khalil ibn ʿAbdallah al-Hamadani al-Asadabadi (935 CE – 1025 CE) was an Islamic jurist and hadith scholar who is remembered as the Qadi al-Qudat (Chief Magistrate) of the Buyid dynasty and the last great scholar of the Mu'tazilite school of Islamic theology, and a reported follower of the Shafi‘i school.[1][2] Abd al-Jabbar means "Servant of al-Jabbar (the Almighty)."[3] The Mu'tazila call him "Qadi al-Qudat" (قاضي القضاة) and do not give this title to anyone else.[4]
He was born in Asadabad near Hamadan, Iran. He settled in Baghdad, until he was invited to Rey in 367 AH/978 CE by its governor, Sahib ibn Abbad, a staunch supporter of the Mu'tazila theological movement . He was appointed chief Qadi of the province. On the death of ibn 'Abbad in 995 CE, Abd al-Jabbar was deposed and arrested by the Buyid Amir, Fakhr al-Dawla, because of a slighting remark made by him about his deceased benefactor. He died later in 415 AH/1025 CE.
Qadi ʿAbd al-Jabbar's magnum opus, the Kitab al-mughni fi abwab al-tawhid wa l-ʿadl (Book of the plenitude on the topics concerning unity and justice), often shortened to al-Mughni, is a comprehensive twenty volume "summa" of Mu'tazilite theology of the same magnitude as St. Thomas Aquinas's Summa Theologica and Summa Contra Gentiles.[1] It presented Mu'tazili thought under the two headings of God's oneness (tawhid) and his justice (adl). He argued that the Ash'arite separation between the eternal speech of God and the created words of the Qur'an made God's will unknowable.
He and his Mu’tazilite circle were contemporaries of Ibn Sina (better known in the West as Avicenna).[5]