This work is a critical Arabic text edition of K. al-Bayāḍ wa-l-sawād min khaṣāʾiṣ ḥikam al-ʿibād fī naʿt al-murīd wa-l-murād, a substantial Sufi handbook of early Sufism by Abū l-Ḥasan ʿAlī b. al-Ḥasan al-Sīrjānī (d. ca. 470/1077).

Bilal Orfali, Ph.D. (2009), Yale University, is Assistant Professor of Arabic and Islamic Studies at the American University of Beirut. He is the author of several articles and books on classical Arabic literature and Sufism.
Nada Saab, Ph.D. (2003), Yale University, is Assistant Professor of Arabic and Islamic Studies at the Lebanese American University. Her research interests include medieval Sufi literature and theory, as well as the embodiments of this Sufi heritage in modern Arabic literature.