The main text of gSo-ba Rig-pa, Rgyud-Bzi, is a Tibetan composition, based largely on Indian sources. Although the actual origin and history of the Rgyud-Bzi was the subject of heated dispute among Tibetan scholars, the 5th Dalai Lama and his regent Sangay Gyamtso firmly upheld and view that Rgyud-Bzi was first taught in India by the historical Buddha, when he manifested himself as the master of remedies.