Mahabharata - Svargarohanika Parva - Volume 18

Janamejaya said, "Having attained to Heaven, what regions were respectively attained by my grandsires of old, viz., the Pandavas and the sons of Dhritarashtra? I desire to hear this. I think that thou art conversant with everything, having been taught by the great Rishi Vyasa of wonderful feats.