From Rigpa Wiki
Wyl. rgyal sras legs ldan) aka Sho Gyalsé Lekpa (ཤོ་རྒྱལ་སྲས་ལེགས་པ་, sho rgyal sras legs pa) (1290-1366) — the main student to whom Pema Lédrel Tsal transmitted his revelation of the Khandro Nyingtik. Gyalsé Lekden in turn transmitted these teachings to Longchenpa (1308-1364)—the reincarnation of Pema Lédrel Tsal—and to the Third Karmapa Rangjung Dorje (1284-1339). He also received many teachings from Rangjung Dorje, including his Karma Nyingtik.
- Nyoshul Khenpo, A Marvelous Garland of Rare Gems: Biographies of Masters of Awareness in the Dzogchen Lineage (Junction City: Padma Publications, 2005), pages 73-75.