Mbh 8.46.3b

Ashvatthama and the other foremost of mighty car-warriors, and many ever-infuriate elephants shedding temporal secretions like the very clouds and ridden by brave Mlecchas, followed behind that car-force. Decked with triumphal standards and blazing weapons, those huge creatures, ridden by warriors skilled in fighting from their backs, looked beautiful like hills overgrown with trees. Many thousands of brave and unreturning warriors, armed with axes and swords, became the footguards of those elephants. Gorgeously decked with horsemen and car-warriors and elephants, that foremost of arrays looked exceedingly beautiful like the array of the celestials or of the Asuras. That great array, formed according to the scheme of Brihaspati by its commander, well-versed in ways of battle, seemed to dance (as it advanced) and struck terror into the hearts of foes. Like ever-appearing clouds in the season of rains, foot-soldiers and horsemen and car-warriors and elephants, longing for battle began to issue from the wings and further wings of that array. Then king Yudhishthira, beholding Karna at the head of the (hostile) army, addressed Dhananjaya, that slayer of foes, that one hero in the world, and said these words, "Behold, O Arjuna, the mighty array formed by Karna in battle. The hostile force looks resplendent with its wings and further wings. At sight of this vast hostile force, let such measures be adopted that it may not vanquish us." Thus addressed by the king, Arjuna replied with joined hands, "Everything will be done as thou sayest. Nothing will be otherwise. I will, O Bharata, do that by which the destruction of the enemy may be compassed. By slaying their foremost of warriors, I will achieve their destruction."