Mbh 7.186.3c

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!”[248] Having taken that oath in the midst of all the bowmen, that slayer of hostile heroes, viz., the prince of the Panchalas, supported by his own division, advanced against Drona. The Panchalas then began to strike Drona from one side, and Arjuna from another. Duryodhana, and Karna, and Sakuni, the son of Suvala, and the uterine brothers of Duryodhana (stationed), according to their precedence, began to protect Drona in battle. Drona being thus protected in battle by those illustrious warriors, the Panchalas though struggling vigorously, could not even gaze at him. Then Bhimasena, O sire, became highly angry with Dhrishtadyumna and, O bull among men, that son of Pandu pierced Dhrishtadyumna with these fierce words:[249]