manuscripts there, Mr. Mahmūd Jabr; Mr. Sālih al-Azharī, an expert at the Egyptian National Library; and the gracious Shaykh ʿĀdil al-ʿAwadī from the United Arab Emirates. We also thank each of the scholars who served as reviewers. Shaykh Judayʿ Muhammad al-Judayʿ supplied us with some early editions of the book and a number of sources from the classical Islamic medical literature.

We thank the brothers working on the project: the researcher Sirāj Munīr, who collated some of the manuscripts, corrected proofs, and prepared some of the lexical indexes; and our esteemed brother Khālid Muhammad Jāb Allāh, who typeset and formatted the book, corrected its proofs, and prepared it for final publication, while also helping to compile the lexical indexes. We likewise thank Dr. ʿAbd Allāh Ghālib al-Kalāʿī and brother ʿAbd al-Khāliq ʿAbbāsī, who helped collate some of the manuscripts.

We ask Allah to reward them all generously, and to grant the book’s author, Imam Ibn Qayyim al-Jawziyyah—may Allah have mercy on him—the finest reward He grants godly scholars. May Allah send blessings and peace upon our Prophet Muhammad and upon all his family and Companions.