کتاب المعتمد فى اصول الدىن /‪‪‪‪ / تألىف محمود بن محمد ملاحمى الخوارزمى ؛ تحقىق وتقدىم وىلفرد مادلونغ.‪‪‪‪Kitāb al-muʿtamad fī uṣūl al-dīn / / by Maḥmūd b. Muḥammad al-Malāḥimī ; (Edited by) Wilferd Madelung.

• Author: Markaz-i Nashr-i Mīrās̲-i Maktūb.
• VerfasserIn: al-Malāḥimī, Maḥmūd b. Muḥammad,
• TeilnehmendeR: Madelung, Wilferd,; مرکز نشر ميراث مکتوب.‪‪‪‪ / Markaz-i Nashr-i Mīrās̲-i Maktūb.; Freie Universität Berlin. Institut für Islamwissenschaft.
• Place / Publishing House: Leiden; , Boston : : BRILL,, [2019]; ©2012
• Year of Publication: 2019
• Language: English; Arabic
• Series: Mīrās̲-i kuhan-i jahān-i Islām ; 1; ʻUlūm va maʻārif-i Islāmī ; 58
• Physical Description: 1 online resource.
• Notes: Added t.p. has: Revised and enlarged edition by Wilferd Madelung.; "Mīras̲-i Maktūb ; 236"

Abu ʼl-Ḥusayn al-Baṣrī (d. 436/1044) was the founder of the last theological school of the Muʿtazila and author of, among others, the Kitāb taṣaffuḥ al-adilla and Sharḥ al-uṣūl al-khamsa . None of his theological works survive in full, while his influential Kitāb taṣaffuḥ al-adilla , of which only fragments remain, was actually never finished. Al-Baṣrī's teachings were given a new impulse and audience through the writings of Rukn al-Dīn b. al-Maḥmūd al-Malāḥimī (d. 536/1141) of Khurāsān, where his ideas also gained support among the Shīʿa, including Naṣīr al-Dīn Ṭūsī (d. 672/1274). Al-Malāḥimī's Kitāb al-muʿtamad fī uṣūl al-dīn , in which he relies mostly on al-Baṣrī's Kitāb taṣaffuḥ al-adilla , survives only in part. The present volume contains a new edition of this text. Thanks to the discovery of two manuscripts in Yemen it was possible to amend the first edition in places and to add a lot of new material, the text now being double in size.