The first full-length academic study of 'Abdullah al-Harari (d. 2008), a major yet understudied Sunni scholar whose life and thought illuminate the theological and institutional struggles that have shaped modern Sunnism.

While much scholarly attention has been devoted to Wahhabism and Islamist movements such as the Muslim Brotherhood and Hizb al-Tahrir, no comparable analysis has examined al-Harari's project to defend and revitalize the classical Sunni tradition rooted in Ash'ari-Maturidi theology, the four legal schools, and Sufi ethics.

Drawing on unpublished Arabic sources, oral testimonies, and doctrinal writings, Bakir Saleh reconstructs al-Harari's intellectual formation in Harar, Ethiopia, his public debates with Wahhabi-influenced preachers, his exile and travels, and his eventual establishment of the Association of Islamic Charitable Projects (AICP) in Lebanon. Through this biographical and historical lens, the book situates al-Harari's defence of tanzih (divine transcendence) and use of ta'wil (interpretive hermeneutics) within the larger Ash'ari commitment to theological balance between reason and revelation.

The study also examines al-Harari's polemics against contemporary Islamist ideologues such as Sayyid Qutb and movements like Hizb al-Tahrir, highlighting how his interventions sought to counter both literalism and indiscriminate takfir (excommunication), which he viewed as destabilizing Sunni unity. By analysing these debates within their socio-political and intellectual contexts, Saleh demonstrates how al-Harari's teachings aimed to restore coherence to a fractured Sunni identity and to safeguard tradition against extremism and ideological manipulation.

In tracing al-Harari's global institutional legacy through the AICP's educational and outreach networks in the Middle East, North America, and Europe, the book reveals how a contested yet influential scholar sought to articulate a modern Sunni orthodoxy that could withstand fragmentation while remaining faithful to its classical foundations.