manur ikṣvākave ‘bravīt
The Personality of Godhead, Lord Śrī Kṛṣṇa,said: I instructed this imperishable science of yoga tothe sun-god Vivasvān,and Vivasvāninstructed it to Manu,the father of mankind, and Manu in turn instructed it to Ikṣvāku.
Vivasvan is the “Sun God” and is the Clan founder. He is supposed to have lived or having the same age with the origin of the world. Vivasvan literally means — master of the rays or Sun God.
The knowledge was passed from Visvasvan (Sun God) to Manu (first of Man — akin to biblical term adam. Manu then wrote the “Laws of Manu” — authoritative scriptures on Dharma — rules of right conduct/social law.
Manu then instructed it to Ikshvaku.
Ikshavaku is the ruler of the first Indian dynasty. In the Ramayana, Ikshvaku was the first king of the Solardynasty. He was an ancestor of Ram.
The Sun Dynasty or Solar Dynasty or Suryavansha is one ofthe most prominent dynasties in the history of Hinduism, along with the”Chandravansha” or Lunar Dynasty. The word “Survanshi” means a person belongingto this solar dynasty. The city of Ayodhya was founded by Vaivasvata Manu.
The very first Manu of our kalpa or eon was called svayambhuva Manu who the Indian tradition says composed the Laws of Manu, thefamous Hindu text on Dharma — The social law. Each Manu or Manvantaras at each period has a differentnames. There have already been seven Manus in the current eon or Kalpa. Therewill be seven more Manus in the remaining ages untill our eon or Kalpa is ended.