Mbh 6.57.1a

Sanjaya said, “After the ranks of thy army and theirs had been disposed in battle-array, that mighty car-warrior, Dhananjaya, felling in that conflict leaders of car-divisions with his arrows, caused a great carnage, O Bharata, among the car-ranks. The Dhartarashtras, (thus) slaughtered in battle by Pritha’s son, like the Destroyer himself at the end of the Yuga, still fought perseveringly with the Pandavas. Desirous. of (winning) blazing glory and (bent upon) making death (the only ground for) a cessation of the fight, with minds undirected to anything else, they broke the Pandava ranks in many places and were also themselves broken. Then both the Pandava and the Kaurava troops broke, changed positions, and fled away. Nothing could be distinguished. An earthly dust arose, shrouding the very sun. And nobody there could distinguish, either the cardinal or the subsidiary directions. And everywhere the battle raged, O king, the combatants being guided by the indications afforded by colours, by watch-words, names and tribal distinctions. And the array of the Kauravas, O king, could not be broken, duly protected as it was by Bharadwaja’s son, O sire.[371] And so the formidable array of the Pandava also, protected by Savyasachin, and well-guarded by Bhima, could not be broken. And the cars and elephants in close ranks, O king, of both the armies, and other combatants, coming out of their respective arrays, engaged in conflict. And in that fierce battle cavalry soldiers felled cavalry soldiers, with polished swords of sharp edges and long lances. And car-warriors, getting car-warriors (within reach) in that fierce conflict, felled them with shafts decked with golden wings. And elephant-riders, of thy side and theirs, felled large numbers of elephant-riders in close ranks, with broad-headed shafts and arrows and lances. And large bodies of infantry, inspired with wrath towards one another, cheerfully felled combatants of their own class with short arrows and battle-axes.