A class on Bhagavad Gita 4.1 given by His Divine Grace A.C. Bhaktivedanta Swami Prabhupada on March 21, 1974 in Mumbai, India.
Bhagavad Gita 4.1
śrī-bhagavān uvāca
imaṁ vivasvate yogaṁ
proktavān aham avyayam
vivasvān manave prāha
manur ikṣvākave ’bravīt
The Personality of Godhead, Lord Śrī Kṛṣṇa, said: I instructed this imperishable science of yoga to the sun-god, Vivasvān, and Vivasvān instructed it to Manu, the father of mankind, and Manu in turn instructed it to Ikṣvāku.