Mbh 7.24.3a

“‘When those troops, thus broken, fled away in all directions, the ruler of the Pragjyotishas then advanced against Bhima, upon his elephant.[50] With its two (fore) legs and trunk contracted, filled with rage, and with eyes rolling, that elephant seemed to consume the son of Pandu (like a blazing fire). 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.