Vajragarbha
Vajragarbha (Skt.; Tib. རྡོ་རྗེའི་སྙིང་པོ་, Dorjé Nyingpo, Wyl. rdo rje'i snying po) — a bodhisattva who compiled the Dzogchen teachings given by the Buddha Samantabhadra in Akanishtha. He is counted as one of Tertön Sogyal's previous incarnations.
The interlocutor in the Hevajra Tantra is also called Vajragarbha.