Mbh 7.94.1a

“Sanjaya said, ‘After that bull among men, viz., Duryodhana, had set out from behind, following Partha and him of Vrishni’s race, O king, both of whom had penetrated into the Kaurava army, the Pandavas accompanied by the Somakas, quickly rushed against Drona with loud shouts. And then commenced the battle (between them and Drona’s troops). And the battle that took place between the Kurus and the Pandavas at the gate of the array, was fierce and awful, making the hair stand on end. The sight filled the spectators with wonder. O king, the sun was then in the meridian. That encounter, O monarch, was truly such that we had never seen or heard of its like before. The Parthas headed by Dhrishtadyumna, all accomplished in smiting and arrayed properly covered the troops of Drona with showers of arrows. Ourselves also, placing Drona, that foremost of all wielders of weapons, at our head, covered the Parthas, gathered by Prishata’s son, with our shafts. The two hosts, adorned with cars and looking beautiful, then appeared like two mighty masses of clouds in the summer sky, driven towards each other by opposite winds. Encountering each other, the two hosts increased their impetuosity, like the rivers the Ganga and the Yamuna, swollen with water during the season of the rains. Having diverse kinds of weapons for the winds that ran before them, teeming with elephants and steeds and cars charged with lightning, constituted by the maces wielded by the warriors, the fierce and mighty cloud formed by the Kuru host, urged on by the Drona-tempest, and pouring incessant shafts that constituted its torrents of rain, sought to quench the scorching Pandava-fire. Like an awful hurricane in summer agitating the ocean, that best of Brahmanas, viz., Drona, agitating the Pandava host. Exerting themselves with great vigour, the Pandavas rushed towards Drona alone for piercing his host, like a mighty torrent of water towards a strong embankment, for sweeping it away.