Alternative Lineages: The Shisong lü 十誦律 in Japanese Ancient Manuscript Buddhist Canons

Traditional studies on Chinese Buddhism have largely relied on printed canons from the Song, Yuan, Ming, and Goryeo dynasties. However, recent discoveries of Dunhuang and Turfan manuscripts, along with growing recognition of Nihon kosha issaikyō (Japanese Ancient Manuscript Canons), have expanded the scope of Buddhist textual research. Despite their significance, Japanese manuscript Buddhist canons remain underexplored, particularly in relation to their textual lineages and connections to Tang-dynasty texts. This study examines Nihon kosha issaikyō through a philological analysis of the Shisong lü (Ten Recitation Vinaya), assessing textual variants, structural patterns, and transmission histories. By situating Nihon kosha issaikyō within the broader East Asian Buddhist tradition, this research clarifies their role in preserving alternative textual lineages beyond standardized printed canons. The findings contribute to a deeper understanding of Buddhist textual transmission, canon formation, and the interplay between manuscript and printed traditions in China, Korea, and Japan. This study highlights the historical processes that shaped East Asian Buddhist canons and offers new insights into their adaptation and preservation across different cultural contexts.