arjunaḥ uvāca — Arjuna said; aparam — junior; bhavataḥ — Your; janma — birth; param — superior; janma — birth; vivasvataḥ — of the sun-god; katham — how; etat — this; vijānīyām — shall I understand; tvam — You; ādau — in the beginning; proktavān — instructed; iti — thus.