The Tantra of Self-Blazing Wisdom, the Precious Perfection (Rin chen rdzogs pa ye shes rang 'bar ba'i rgyud) is contained in The Collected Tantras of the Ancient Ones (Rnying ma rgyud ‘bum). Manuscripts from which this collection was printed were found at the monastery of Tsamdrak in western Bhutan. This edition comprises 46 volumes and was probably calligraphed in the 18th century.