The Karmapa incarnation line, based at Tsurpu monastery, is one of the oldest lines in Tibet. Dusum Khyenpa, who is credited with intitiating the Karma Kagyu tradition, supposedly prophesied his own rebirth as Karma Pakshi, thereby initiating the line. However, historical record seems to indicate that the Karmapa incarnation line actually began with the Third Karmapa, Rangjung Dorje, who asserted that he was the incarnation of Karma Pakshi and further that Karma Pakshi himself had been the reincarnation of Dusum Khyenpa.