RelBib: Book review: Sufism, Black and White: A Critical Edition of Kitāb al-Bayāḍ wa-l-Sawād by Abū l-Ḥasan al-Sīrjānī (d. ca. 470/1077), written by Bilal Orfali and Nada Saab https://relbib.de/Record/1562042483