This article examines the Islamic educational epistemology of Kiai Bandi Bin Kiai Sa’id Lakbok (1901–1951), a prominent ulama from Ciamis, West Java, whose pesantren-based educational tradition significantly contributed to the formation of ulama cadres across Java and Sumatra. The study explores how Kiai Bandi integrated religious scholarship, ethical formation, spirituality, and leadership development through traditional Islamic learning practices rooted in pesantren culture. Using a qualitative historical-descriptive approach, the research draws upon interviews, historical manuscripts, community narratives, and field documentation to reconstruct the educational networks and intellectual legacy established by Kiai Bandi and his disciples. The findings reveal that his pedagogical model emphasized moral discipline, individualized mentorship, community engagement, and the transmission of religious authority across generations. The article contributes to contemporary discussions on Islamic education by demonstrating the continuing relevance of traditional pesantren epistemology in shaping resilient Muslim scholarly communities. It further highlights how local ulama networks in Java and Sumatra functioned as important socio-religious institutions that preserved Islamic knowledge, spirituality, and communal leadership within Indonesian Muslim society.