imaṅ vivasvatē yōgaṅ prōktavānahamavyayam.
vivasvān manavē prāha manurikṣvākavē.bravīt৷৷4.1৷৷
4.1 imam this? vivasvatē to Vivasvan? yōgam Yoga? prōktavān taught? aham I? avyayam imperishable? vivasvān Vivasvan? manavē to Manu? prāha taught? manuḥ Manu? ikṣvākavē to Ikshvaku? abravīt taught.Commentary: Vivasvan means the sun. Ikshvaku was the son of Manu. Ikshvaku was the reputed ancestor of the solar dynasty of Kshatriyas.This Yoga is said to be imperishable because the result or fruit? i.e.? Moksha? that can be attained through it is imperishable.If the rulers of dominions possess a knowledge of the Yoga taught by Me in the preceding two discourses? they can protect the rahmanas and rule their kingdom with justice. So I taught this Yoga to the Sun-god in the beginning of evolution.