see rdzong pa kun dga' rgyal mtshan/ (1382–1446)'s Saṃputa commentary, the dpal rgyud kyi rgyal po saM bu Ti'i bshad sbyar gzhung don ma lus pa gsal bar byed pa rin chen 'bar ba/
see Stefan Larsson 's essay "Crazy Yogins During the Early Renaissance Period, Tibetan Renaissance Seminar":https://collab.its.virginia.edu/wiki/renaissanceold/Crazy%20Yogins%20During%20The%20Early%20Renaissance%20Period.html (accessed: 2023-06-16)