Bhagwad Gita
Chapter 4, Verse 4
अर्जुन उवाच
अपरं भवतो जन्म परं जन्म विवस्वतः।
कथमेतद्विजानीयां त्वमादौ प्रोक्तवानिति।।4.4।।
Arjuna said: The sun-god Vivasvan is senior by birth to You. How am I to understand that in the beginning You instructed this science to him?