Mbh 6.58.1b

And the prowess we then beheld of Hidimva’s son was exceedingly wonderful, insomuch that he fought in battle, O Bharata, transcending his very father. And Bhimasena, the son of Pandu, excited with wrath, pierced the vindictive Duryodhana in the breast, with an arrow, smiling the while. Then king Duryodhana, afflicted by the violence of that blow, sat down on the terrace of his car and swooned away. And his charioteer then, beholding him senseless, speedily bore him away, O king, from battle. And then the troops that supported Duryodhana broke and fled. And thereupon Bhima, smiting that Kuru army thus flying away in all directions, with sharp-pointed shafts, pursued it behind. And Prishata’s son (Dhrishtadyumna), that foremost of warriors, and Pandu’s son king Yudhishthira, the just, in the very sight, O Bharata, of both Drona and Ganga’s son, slew their army with sharp shafts capable of slaying hostile forces. That host of thy son, thus flying away in battle, those mighty car-warriors, Bhishma and Drona were incapable of checking. For though attempted to be checked by Bhishma and the high-souled Drona, that host fled away in the very sight of Drona and Bhishma. And then when (those) thousand of car-warriors fled away in all directions, Subhadra’s son and that bull of Sini’s race, both stationed on the same car, began, O chastiser of foes, to slaughter the army of Suvala’s son of battle. And Sini’s grandson and that bull of Kuru’s race looked resplendent like the sun and the moon when together in the firmament after the last lunation of the dark fortnight has passed away. And then Arjuna also, O king, excited with rage, showered arrows on thy army like the clouds pouring rain in torrents. And the Kaurava army, thus slaughtered in battle with the shafts of Partha, fled away, trembling in grief and fear. And beholding the army flying away, the mighty Bhishma and Drona, excited with rage and both desirous of Duryodhana’s welfare sought to check it.