Mbh 7.177.1b

Then Bhimasena’s son, O lord, abandoning Karna, began to grind his advancing foe with arrows. The battle that took place then between those angry Rakshasa princes, resembled that between two infuriated elephants in the forest, fighting for the sake of the same she-elephant in her season. Freed then from the Rakshasa, Karna, that foremost of car-warriors, rushed against Bhimasena, riding on his car of solar effulgence. Beholding Ghatotkacha engaged with Alayudha in battle and afflicted like the leader of a bovine herd when engaged with a lion, Bhima, that foremost of smiters, disregarding the advancing Karna, rushed towards Alayudha, riding on his car of solar effulgence and scattering clouds of shafts. Seeing Bhima advance, Alayudha, O lord, abandoning Ghatotkacha, proceeded against Bhima himself. Then Bhima, that exterminator of Rakshasas, impetuously rushed towards him, O lord, and covered that prince of the Rakshasas with shafts. Similarly, Alayudha, that chastiser of foes, repeatedly covered the son of Kunti with straight shafts whetted on stone. All the other Rakshasas also, of terrible forms and armed with diverse weapons solicitous for the victory of thy sons, rushed against Bhimasena. The mighty Bhimasena, thus assailed by them, pierced each of them with five whetted shafts. Then those Rakshasas of wicked understanding, thus received by Bhimasena, uttered loud wails and fled away on all sides. The mighty Rakshasa, beholding his followers frightened by Bhima, rushed impetuously against Bhima and covered him with shafts. Then Bhimasena, in that battle, weakened his foe by means of many keen-pointed arrows. Amongst those arrows sped at him by Bhima, Alayudha speedily cut off some and seized others in that battle. Then Bhima of terrible prowess, looking steadily at that prince of the Rakshasas, hurled at him with great force a mace endued with the impetuosity of thunder.