Vishnuyasha is, in tradition, the ascetic/sage of Shambhala, father of the Kalki-avatara. SB 1.3.25: 'janita vishnu-yasasah' — Kalki will be born as his son. (No dedicated Wikipedia article.)
Śrīmad Bhāgavata Mahāpurāṇa 1.3.25 — Sanskrit Wikisource (pinned oldid=369178)
