Mbh 7.154.2c

Then in the very sight of Karna, of Aswatthaman, of Duryodhana, of Kripa, of Somadatta, and of Valhika, the son of Pandu, that chastiser of foes, by a stamp of his foot, caused that car of the heroic Durmada and Dushkarna to sink into the earth. Filled with rage, Bhima struck with his fists those mighty and brave sons of thine, viz., Durmada and Dushkarna, and crushed them therewith and roared aloud. Then cries of Oh and Alas arose among the troops. And the kings, beholding Bhima said, “That is Rudra who is fighting in Bhima’s form among the Dhartarashtras.” Saying these words, O Bharata, all the kings fled away, deprived of their senses and urging the animals they rode to their greatest speed. Indeed, no two of them could be seen running together. Then, when on that night a great carnage had been caused among the (Kaurava) army, the mighty Vrikodara, with eyes beautiful as the full-blown lotus, highly applauded by many bulls among kings, repairing unto Yudhishthira, paid his regards unto him. Then the twins (Nakula and Sahadeva), and Drupada and Virata, and the Kaikeyas, and Yudhishthira also, felt great joy. And all of them paid their adorations unto Vrikodara even as the celestials did unto Mahadeva after Andhaka had been slain. Then thy sons, all equal unto the sons of Varuna, filled with rage and accompanied by the illustrious Preceptor and a large number of cars, foot-soldiers, and elephants encompassed Vrikodara on all sides from desire of fight. Then, O best of kings, on that terrible night, when everything was enveloped in darkness, as thick as a cloud, a dreadful battle took place between those illustrious warriors, delightful to wolves and crows and vultures.’”