This book offers a comparative analysis of contemporary approaches to the sirah genre (biography of Prophet Muhammad). It explores the connection and juxtaposition of the sirah genre with Islamic systematic theology (kalam), particularly in the context of the emergence of Islamic modernism. It also highlights the inherent interconnectedness of the sirah and kalam disciplines. The book presents a careful study of Fethullah Gülen’s reading and interpretation of the sirah within the broader framework of modern debates, investigating his approach through the lens of the kalam discipline and the philosophy of sirah. The author argues that reading the sirah from the perspective of the kalam discipline, kalamisation of sirah, is a novel response to modern debates around the life of Prophet Muhammad. Kalamisation of sirah together with the notion of sirah philosophy, represents a significant advancement in the field, providing new methodological and interpretative frameworks that are likely to define future trajectories of sirah writings. Gülen’s contributions are both ground-breaking and forward-looking, offering novel ways to engage with and understand the sirah for a contemporary audience. This book is an essential resource for scholars and researchers in Islamic studies, theology, philosophy of religion, religious movements, and literature.