The Necklace of Precious Pearls (Tibetan: མུ་ཏིག་རིན་པོ་ཆེའི་ཕྲེང་བ, Wylie: mu tig rin po che'i phreng ba) is one of the Seventeen tantras of Dzogchen Upadesha.
Translations
The tantra has been translated into English by Christopher Wilkinson in a self-published edition entitled "The Pearl Necklace Tantra: Upadesha Instructions of the Great Perfection"
References
Necklace of Precious Pearls Wikipedia(Text) CC BY-SA