Mahabharata Drona Parva Chapter 24:2

Mahabharata Drona Parva (Dronabhisheka Parva) Chapter 24:2 And it pounded Vrikodara's car with the steed yoked thereto into dust. Then Bhima ran forward and got under the elephant's body, for he knew the science called Anjalikabedha. Indeed, the son of Pandu fled not. Getting under the elephant's body, he began to strike it frequently with his bare arms. And he smote that invincible elephant which was bent upon slaying him. Thereupon, the latter began to quickly turn round like a potter's wheel. Endued with the might of ten thousand elephants, the blessed Vrikodara, having struck that elephant thus, came out from under Supratika's body and stood facing the latter. Supratika then, seizing Bhima by its trunk, threw him down by means of its knees. Indeed, having seized him by the neck, that elephant wished to slay him. Twisting the elephant's trunk, Bhima freed himself from its twine, and once more got under the body of that huge creature. And he waited there, expecting the arrival of a hostile elephant of his own army. Coming out from under the beast's body, Bhima then ran away with great speed. Then a loud noise was heard, made by all the troops, to the effect, "Alas, Bhima hath been slain by the elephant!" The Pandava host, frightened by that elephant, suddenly fled away, O king, to where Vrikodara was waiting. Meanwhile, king Yudhishthira, thinking Vrikodara to have been slain, surrounded Bhagadatta on all sides, aided by the Panchalas. Having surrounded him with numerous cars, king Yudhishthira that foremost of car-warriors, covered Bhagadatta with keen shafts by hundreds and thousands. Then Bhagadatta, that king of the mountainous regions, frustrating with his iron hook that shower of arrows, began to consume both the Pandavas and the Panchalas by means of that elephant of his. Indeed, O monarch, the feat that we then beheld, achieved by old Bhagadatta with his elephant, was highly wonderful. Then the ruler of the Dasarnas rushed against the king of the Pragjyotisha, on a fleet elephant with temporal sweat trickling down, for attacking Supratika in the flank. The battle then that took place between those two elephants of awful size, resembled that between two winged mountains overgrown with forests in days of old. Then the elephant of Bhagadatta, wheeling round and attacking the elephant of the king of the Dasarnas, ripped open the latter's flank and slew it outright. Then Bhagadatta himself with seven lances bright as the rays of the sun, slew his (human) antagonist seated on the elephant just when the latter was about to fall down from his seat. Piercing king Bhagadatta then (with many arrows), Yudhishthira surrounded him on all sides with a large number of cars. Staying on his elephant amid car-warriors encompassing him all around, he looked resplendent like a blazing fire on a mountain-top in the midst of a dense forest. He stayed fearlessly in the midst of those serried cars ridden by fierce bowmen, all of whom showered upon him their arrows. Then the king of the Pragjyotisha, pressing (with his toe) his huge elephant, urged him towards the car of Yuyudhana.