Claim: Seung-Sahn Haeng-Won's (the only Patriarch in his lineage) transmission lineage includes Mahākāśyapa (in Sanskrit), Makakashō (in Japanese), or Ma-Ha-Ca-Diếp (in Vietnamese).
Evidence: The following list documents Seung-Sahn Haeng-Won's transmission lineage, starting with the Buddha and the First Patriarch. Sanskrit Mahākāśyapa Japanese Makakashō Vietnamese Ma-Ha-Ca-Diếp