Ibn Qayyim al-Jawziyya

Shams ad-Dīn Abū ʿAbd Allāh Muḥammad ibn Abī Bakr ibn Ayyūb az-Zurʿī d-Dimashqī l-Ḥanbalī, commonly known as Ibn Qayyim al-Jawziyya or Ibn al-Qayyim for short, or reverentially as Imam Ibn al-Qayyim in Sunni tradition, was an important medieval Islamic jurisconsult, theologian, and spiritual writer. Belonging to the Hanbali school of orthodox Sunni jurisprudence, of which he is regarded as "one of the most important thinkers," Ibn al-Qayyim was also the foremost disciple and student of Ibn Taymiyya, with whom he was imprisoned in 1326 for dissenting against established tradition during Ibn Taymiyya's famous incarceration in the Citadel of Damascus.
Of humble origin, Ibn al-Qayyim's father was the principal of the School of Jawziyya, which also served as a court of law for the Hanbali judge of Damascus during the time period. Ibn al-Qayyim went on to become a prolific scholar, producing a rich corpus of "doctrinal and literary" works.