Mbh 7.50.1

“Sanjaya said, ‘While Kunti’s son, Yudhishthira, was indulging in such lamentations, the great Rishi Krishna Dwaipayana came to him. Worshipping him duly, and causing him to be seated, Yudhishthira, afflicted with grief on account of the death of his brother’s son, said, “Alas, while battling with many mighty bowmen, the son of Subhadra, surrounded by several great car-warriors of unrighteous propensities, hath been slain on the field. The slayer of hostile heroes, the son of Subhadra, was a child in years and of childish understanding.[82] He fought in battle against desperate odds. I asked him to open a passage for us in battle. He penetrated within the hostile army, but we could not follow him, obstructed by the ruler of the Sindhus. Alas, they that betake themselves to battle as a profession, always fight with antagonists equally circumstanced with themselves. This battle, however, that the enemy fought with Abhimanyu, was an extremely unequal one. It is that which grieves me greatly and draws tears from me. Thinking of this, I fail to regain peace of mind.”’