His Kunyah was Abu al Farah. His name was Abdur Rahman ibn al Baghdadi Hanbali Siddiqi but he is famous by the name of Ibn al-Jawzi which is derived from Furdah al-Jawzi which is derived from Furdah al-Jawz the name of a place. He was a great theologian, able jurist and superior muhaddith. The Islamic Scholars unanimously recognize him as an excellent and knowledgeable scholar. His works cover a wide range of subjects exegesis, jurisprudence, travel and some more. The number of his books is very great and he was accepted as an authority in all these subject. He had written a book on mawdooat Hadith in which he collected the Hadith tht are mawdoo. Another of his books is Talbees Iblis in which he has discussed bidah (innovation) and acts that are contrary to sunnah, and then rejected them; this book has an interesting account of aqwaam Shayatani (devils people) and an outright rejection of those who deny the Sufis, innovators and the misled.
During his work he introduced very important book known as Tazkirat-ul-Khawas.
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