This work investigates available early Arabic ḥadīth and exegetical literature in order to determine the great complexity of how Arabs, Muslims and Arab-Muslims viewed themselves and members of other communities. In particular, it focuses on the relation between definitions of “Arabness” and “otherness” with Islamic ascriptions of believers and nonbelievers and endeavors to trace the changing of these views over time. Moreover, this is an in-depth analysis of a series of ḥadīths and isnāds that discusses when, where, why, and by whom traditions were circulated during the 8th and 9th centuries. I. Bedouins and Non-Arabs II. The Impact of the Arab Polity in Retrospect III. The Great Fusion IV. Ambivalent Attitudes V. Apocalyptic Insecurities VI. Summary Discussion and Concluding Notes