Before you is the English rendition of the treatise "Fadhlul-Islam" - "The Merit of Islam" by Shaykh Muhammad bin Abdul-Wahhab, may Allah have mercy on him. This concise book by Muhammad bin Abdul-Wahhab contains the distinctive characteristics of Islam, and if someone ponders over each chapter and the proofs mentioned within it, he will be able to recognize many of the great blessings of Islam and its merit over other religions. This book is one that rewards reflection and contemplation, so each chapter should be accompanied by such. To increase its usefulness, the authentication of this book by Shaykh Zubayr ʿAli Za'i, may Allāh have mercy on him, has been added. In this way, this book can be used both as a companion when listening to a scholarly explanation and for self-study. The English translation of the Matn is based on that provided by the Islamic Guidance & Community Awareness Association in Rabwah (Riyadh, Saudi-Arabia). It was revised by Takhrij al-Hadith Publications and then revised and edited again by our noble brother Abu Khuzaimah al-Ansari from Salafi Research Institute (UK); brother Fazl Khan (UK) helped with important organizational matters, may Allah reward them both with the best of rewards, Ameen. The Taqriz was written by Shaykh Nadhir Ahmad Madani Umri, who graduated from Jami'a Darussalam 'Umrabad (India), holds a bachelor's degree in Hadith and a master's degree in Fiqhul-Hadīth from Medinah University and soon a PhD from the International Islamic University (Malaysia). He currently works as an Imam and Khatib at Masjid Ansar, where he holds regular Durus. He is also the head of department at the Jami' 'Isa bin Salman Institute (Rifa', Bahrain), where he supervises activities and teaches, may Allah protect and preserve him, Ameen. Imran Hussain Takhraj al-Hadith Publications