The Kitab Tahrim dafn al-ahya’, the Book on the Prohibition to Bury the Living, written by the Nestorian physician ‘Ubaidallah Ibn Buhtisu’ (d. c. 1060 CE), deals with the causes, signs and treatments of apparent death. Based on a short pseudo-Galenic treatise, whose Greek original is lost, ‘Ubaidallah’s Arabic commentary is a comprehensive and in many ways unique piece of scientific writing that moreover promotes a psychological understanding of physical illness. Oliver Kahl’s present book offers a critical Arabic edition with annotated English translation of 'Ubaidallah’s work on apparent death, framed by a detailed introductory study and extensive glossaries covering all relevant terms; for comparative purposes, the Arabic and Hebrew recensions of the lost Greek prototype are presented in an appendix.