Rational speculative theology (kalam) in early Islam was represented most distinctly by the theological school of the Mu'tazila. Founded in Basra in the early 8th century, the school soon became predominant in theological scholarship and discourse and remained so until the early 11th century. The Mu'tazila held that the basic truths of theology, such as the existence of God and the nature of His attributes and justice, are entirely subject to rational proof without the benefit of scriptural revelation. Only after these basic truths have been established can the veracity of scripture be proved...

Abū ʿAlī Muḥammad Ibn Khallād al-Baṣrī was a distinguished disciple of the Muʿtazilī theologian and founder of the Bahshamiyya, Abū Hāshim al-Jubbāʾī (d. 321/933). He is reported to have written a theological summa, Kitāb al-Uṣūl, as well as an autocommentary. None of the works of Ibn Khallād has come down to us directly, although substantial portions of his Kitāb al-Uṣūl and/or Sharḥ al-Uṣūl have reached us embedded in the Kitāb Ziyādāt Sharḥ...

This volume represents the state of the art in research on the controversial Muslim legal scholar, theologian and man of letters Ibn Ḥazm of Cordoba (d. 456/1064), who is widely regarded as one of the most brilliant minds of Islamic Spain. Remembered mostly for his charming treatise on love, he was first and foremost a fierce polemicist who was much criticized for his idiosyncratic views and his abrasive language. Insisting that the sacred sources of Islam are to be understood in their outward sense and that it is only the Prophet Muḥammad whose example may be followed, Ibn...

This volume brings together contributions by scholars focussing on peritextual elements as found in Middle Eastern manuscripts: dots and various other symbols that mark vowels, intonation, readings aids, and other textual markers; marginal notes and sigla that provide additional explanatory content akin to but substantially different from our modern notes and endnotes; images and illustrations that present additional material not found in the main text. These elements add additional layers to the main body of the text and are crucial for our understanding of the text’s transmission history...

Rudolf Strothmann (1877-1960) played a pioneering role in the scholarly exploration of Shi’i Islam in Western, especially German, scholarship. Between 1910 & 1923, he published many pathbreaking studies on the Zaydiyya, consulting primarily the recently purchased collections of Yemeni Zaydi manuscripts in Berlin. At the same time, he began to delve into Twelver Shi’i literature, culminating in his 1926 monograph on two prominent 7th- & 13th-cent. Imami scholars. This study examines the earlier decades of Strothmann’s life and his development as a theologian and a scholar of...