This book by Muhammad Yusri Abu Hadour delves into the complex and often contentious portrayals of Abu Lu'lu'a al-Majusi (Piruz Nahavandi) within Sunni and Shia Islamic traditions. It meticulously analyzes how this historical figure, known for assassinating Caliph Umar ibn al-Khattab, has been conceived and reinterpreted across different sectarian narratives. The study explores the divergent perspectives, examining the historical, theological, and socio-political factors that have shaped his image in both Sunni and Shia imaginations. Abu Hadour provides a critical examination of the ideological underpinnings that lead to Abu Lu'lu'a being viewed either as a villain or, controversially, as a heroic figure in certain contexts, offering profound insights into sectarian memory and identity formation.