Netik Phurba or Heart Essence of Vajrakilaya '(Wyl. gnad thig phur ba), also known as the Nyengyü Phurba or Oral Transmission Vajrakilaya (Wyl. snyan brgyud phur ba), is a Vajrakilaya practice which Jamyang Khyentse Wangpo received through oral transmission (nen gyü), one of the seven authoritative transmissions.
When he was staying at the Dzongshö, the palace where the sugatas assemble, one of the five places of enlightened qualities, he had a profound experience of realisation. Then he found himself in the Shitavana charnel ground by the Shankarakuta stupa in the presence of the nine great vidydharas recipient of the Kagyé. Guru Shakya Sengé transmitted him the instruction of this Heart Essence of Vajrakilaya, according to what Prabhahasti transmitted him.
The empowerment for Netik Phurba was given by: