Scholarly discussion of the abdāl (substitutes) has been limited to their appearance as the members of a saintly hierarchy first alluded to by al-Ḥakīm al-Tirmidhī (d. 295/905–300/910) and systematized by Ibn ʿArabī (d. 638/1240). However, unlike the other members of this hierarchy, the abdāl are also known through the hadith, one of which is attributed to ʿAlī b. Abī Ṭālib. This article explores this hitherto unstudied hadith material arguing that the concept originated in hadith circles with a specific purported context, the showdown between the Syrians and Iraqis at the Battle of Ṣiffīn (37/657). A gradual loss of this context went hand-in-hand with the emergence of the mystical saintly abdāl. As monistic Sufism penetrated all elements of Mamluk society, the boundary between the abdāl of the traditionists and of the mystics became porous. This paper concludes with an examination of the ensuing debate on the authenticity of the concept.
