This paper examines the transformation of Hausa social cohesion from its traditional foundations to its current state of decline. Historically, Hausa society was characterized by strong communal bonds epitomized in the concept of cuɗe-ni-in-cuɗe-ka (reciprocal support), where collective welfare took precedence over individualism. Through ethnographic analysis and literary review, the study identifies key traditional values (including mutual aid, kinship solidarity, and communal responsibility) that once defined Hausa interpersonal relations. The paper then analyzes contemporary factors contributing to social fragmentation, including modernization influences (particularly through media and technology), economic pressures, and erosion of traditional value systems. Qualitative data from recent sociological studies in Northern Nigeria is incorporated to demonstrate measurable declines in community trust indicators. Finally, the study proposes culturally-grounded strategies for social revitalization, emphasizing the roles of religious institutions, educational systems, and community leadership in value transmission. The findings suggest that while Hausa social structures face significant challenges, intentional preservation efforts focusing on intergenerational dialogue and institutional reinforcement may mitigate further decline.