Abdul-Qadir al-Jilani

Abdul-Qadir ibn Musa al-Jilani (470-561 AH / 1078-1166 CE) was a Hanbali jurist, hadith scholar, and preacher who became one of the most celebrated figures in Islamic history. Born in Jilan (in present-day Iran), he traveled to Baghdad at age eighteen to pursue knowledge and studied under leading scholars including Abu al-Wafa ibn Aqil, Abu al-Khattab al-Kalwadhani, and Abu Said al-Mukharrimi in both Hanbali fiqh and hadith.

Abdul-Qadir al-Jilani became the most famous preacher in Baghdad, drawing audiences of thousands to his sermons at his school and ribat (spiritual lodge). His lectures combined profound knowledge of Islamic law and hadith with powerful spiritual exhortation, calling people to repentance and devotion to Allah. His most famous works are al-Ghunya li-Talibi Tariq al-Haqq (Sufficiency for Seekers of the Path of Truth), a comprehensive manual covering creed, worship, and spiritual conduct; al-Fath ar-Rabbani (The Divine Openings), a collection of his sermons; and Futuh al-Ghayb (Revelations of the Unseen), spiritual discourses on the inner life.

While he is widely venerated across the Muslim world, particularly among followers of the Qadiri order that traces its lineage to him, it is important to note that many miracles and stories attributed to him in later centuries are not historically verified. As a Hanbali scholar, his actual teachings emphasize strict adherence to the Quran and Sunnah. He died in Baghdad in 561 AH (1166 CE). His school (madrasah) in Baghdad continued to operate for centuries after his death.