Mahabharata Drona Parva Chapter 186:4

Mahabharata Drona Parva (Drona-vadha Parva) Chapter 186:4 Indeed, beholding Drona resplendent and handsome and blazing with energy, the enemy, inspired with fright became pale and wavered on the field, O Bharata! While summoning the hostile army to battle, and looking like an elephant in rut, the enemy became perfectly hopeless of vanquishing him, like the Danavas hopeless of vanquishing Vasava. Some among them became perfectly cheerless, and some, endued with energy, became inspired with wrath. And some were filled with wonder, and some became incapable of brooking (the challenge). And some of the kings squeezed their hands, and some deprived of their senses by rage, bit their lips. And some whirled their weapons, and some rubbed their arms; and some, possessed of great energy and souls under complete control, rushed against Drona. The Panchalas particularly, afflicted with the shafts of Drona, O monarch, though suffering great pain, continued to contend in battle. Then Drupada and Virata proceeded, in that battle, against Drona, that invincible warrior, who was thus careering on the field. Then, O king, the three grandsons of Drupada, and those mighty bowmen, viz., the Chedis, also proceeded against Drona in that encounter. Drona, with three sharp shafts, took the lives of the three grandsons of Drupada. Deprived of lives, the princes fell down on the earth. Drona next vanquished in that battle the Chedis, the Kaikeyas, and the Srinjayas. That mighty car-warrior, viz., the son of Bharadwaja, then vanquished all Matsyas. Then Drupada, filled with wrath, and Virata, in that battle, shot showers of shafts, O king, at Drona. Baffling that arrowy shower, Drona, that grinder of Kshatriyas, covered both Drupada and Virata with his shafts. Shrouded by Drona, both those warriors, with rage, began to pierce him on the field of battle with their arrows. Then Drona, O monarch, filled with wrath and desire of revenge, cut off, with a couple of broad-headed shafts, the bows of both his antagonists. Then Virata, filled with wrath, sped in that encounter ten lances and ten shafts at Drona from desire of slaying him. And Drupada, in anger, hurled at Drona's car a terrible dart made of iron and decked with gold and resembling a large snake. Drona cut off, with a number of sharp and broad-headed arrows, those ten lances (of Virata), and with certain other shafts that dart (of Drupada) decked with gold and stones of lapis lazuli. Then that grinder of foes, viz., the son of Bharadwaja, with a couple of well-tempered and broad-headed shafts, despatched both Drupada and Virata unto the abode of Yama. Upon the fall of Virata and Drupada, and the slaughter of the Kshatriyas, the Chedis, the Matsyas, and the Panchalas, and upon the fall of those three heroes, viz., the three grandsons of Drupada, the high-souled Dhrishtadyumna, beholding those feats of Drona, became filled with rage and grief, and swore in the midst of all the ear-warriors, saying, "Let me lose merits of all my religious acts as also my Kshatriya and Brahma energy, if Drona escape me today with life, or if he succeed in vanquishing me!