gsang ba snying po
From RangjungYesheWiki
Gyuhagarbha, the secret essence [IW]
pre-7th cent. tantra (lalitavajra wrote commentary), Guhyagarbha, the Essence of Secrets, Sri guhyagarbha tattvavi nisccaya, fundamental tantra of mahayoga scripture and root tantra of the sgyu 'phrul series, 1 of 8 sgyu 'phrul rtsa ba'i rgyud [JV]
