Abdul Qādir Gīlānī, (Arabic: عبدالقادر الجيلاني‎), known by admirers as Muḥyī l-Dīn Abū Muḥammad b. Abū Sāliḥ ʿAbd al-Qādir al-Gīlānī al-Ḥasanī wa’l-Ḥusaynī, was a Hanbali Sunni Muslim preacher, ascetic, mystic, jurist, and theologian, known for being the eponymous founder of the Qadiriyya tariqa (Sufi order) of Sufism.