Mbh 7.126.3a

“‘While Bhimasena was on the point of setting out against thy troops from desire of battle, the fierce blasts of Panchajanya were once more heard. Hearing those loud and terrible blasts, capable of filling the three worlds with fear, the son of Dharma once more addressed Bhimasena, saying, “There, the Vrishni hero is fiercely blowing his conch. Indeed, that Prince of conchs is filling the earth and the welkin with its sound. Without doubt, Savyasachin having fallen into great distress, the bearer of the discus and the mace is battling with all the Kurus. Without doubt, the venerable Kunti, and Draupadi, and Subhadra, are all, with their relatives and friends, beholding today exceedingly inauspicious omens. Therefore, O Bhima, go thither with speed where Dhananjaya is. All the points of the compass, O Partha, seem empty to my eyes in consequence of my (unsatisfied) desire to see Dhananjaya and owing also to Satwata.” Repeatedly urged by his superior to go, the valiant son of Pandu, viz., Bhimasena, O king, casing his hands in leathern fence, took up his bow. Urged by his eldest brother, that brother, Bhimasena, who was devoted to his brother’s good, caused drums to be beat. And Bhima forcibly blew his conch also and uttering leonine roars, began to twang his bow. Damping the hearts of hostile heroes by those leonine roars, and assuming a dreadful form, he rushed against his foes. Swift and well-broken steeds of the foremost breed neighing furiously, bore him. Endued with the speed of the wind or thought, their reins were held by Visoka. Then the son of Pritha, drawing the bowstring with great force, began to crush the head of the hostile array, mangling and piercing the combatants there. And as that mighty-armed hero proceeded, the brave Panchalas and the Somakas followed him behind, like the celestials following Maghavat.