Namkhai Nyingpo
Nub་Ben Namkhai Nyingpo (gNubs ban Nam mkha’i snying po, Tibetan: གནུབས་བན་ནམ་མཁའི་སྙིང་པོ།, 8th/9th century) is counted amongst the principal "twenty-five disciples" (Wylie: rje 'bang nyer lnga) of Padmasambhava. Nub Ben Namkha'i Nyingpo was a realized practitioner of Śāntarakṣita’s tradition of Sutrayana "gradualist" Mahayana Buddhism as well as simultaneously being one of the most accomplished Tibetan practitioners of the East Mountain Teaching of Chan Buddhism, which transmits the "subitist" tradition of Mahayana Buddhism.