The Treaty of Hudaybiyyah stands as a pivotal moment in Islamic history, representing a masterpiece of conflict transformation and strategic restraint. This study investigates the diplomatic mechanisms employed by the Prophet Muhammad (PBUH) to navigate a high-stakes military standoff with the Quraish, transforming a potential confrontation into a long-term strategic peace. By focusing on the concept of Prophetic Diplomacy, the research explores how de-escalation was achieved through a deliberate shift from hard power to soft power, prioritizing long-term stability over immediate religious or political gains. The analysis centers on three core de-escalation strategies: the acceptance of seemingly disadvantageous terms, the use of symbolic gestures to reduce communal tension, and the prioritization of security and freedom of movement over territory. Central to this study is the "Hudaybiyyah Paradigm"—a model where the Prophet (PBUH) utilized strategic patience and psychological intelligence to neutralize an adversary’s aggression without resorting to violence. The research examines the treaty’s clauses, particularly the ten-year truce and the controversial clauses regarding the return of converts, to illustrate how perceived diplomatic concessions can serve as catalysts for massive social and political expansion. In a modern context characterized by asymmetric warfare and deep-seated multicultural friction, this study argues that the principles of Hudaybiyyah offer a timeless framework for international relations. It demonstrates that de-escalation is not a sign of weakness but a sophisticated tool of statecraft that requires the courage to compromise for the "greater opening" (Fath al-Mubin). By bridging the gap between classical Seerah literature and contemporary peace and conflict studies, this research provides scholars with an analytical lens to view Islamic history as a source of pragmatic, non-violent solutions for global crises. Ultimately, the study concludes that Prophetic diplomacy offers a vital alternative to the zero-sum logic of modern conflict, emphasizing that the most enduring victories are those won through the ink of treaties rather than the edge of the sword.