Mbh 8.48.2b

While the Pancala heroes were thus being slaughtered with arrows in that great battle, loud cries of "Oh" and "Alas" arose from among the Pancala host. Then ten car-warriors among the Pancalas, O monarch, surrounded Karna. Them, too, Karna speedily slew with his shafts. The two protectors of Karna's car wheels, viz., his two invincible sons, O sire, that were named Sushena and Satyasena, began to fight, reckless of their very lives. The eldest son of Karna, viz., the mighty car-warrior Vrishasena, himself protected his father's rear. Then Dhrishtadyumna, Satyaki, and the five sons of Draupadi, and Vrikodara, Janamejaya, and Shikhandi, and many foremost warriors among the Prabhadrakas, and many amongst the Cedis, the Kaikayas, and the Pancalas, the twins (Nakula and Sahadeva), and the Matsyas, all clad in mail, rushed fiercely upon Radha's son, skilled in smiting, from desire of slaying him. Pouring upon him diverse kinds of weapons and thick showers of arrows, they began to afflict him like the clouds afflicting the mountain breast in the season of rains. Desirous of rescuing their father, the sons of Karna, all of whom were effectual smiters, and many other heroes, O king, of thy army, resisted those (Pandava) heroes. Sushena, cutting off with a broad-headed arrow the bow of Bhimasena, pierced Bhima himself with seven cloth-yard shafts in the chest, and uttered a loud roar. Then Vrikodara of terrible prowess, taking up another tough bow and stringing it quickly, cut off Sushena's bow. Excited with rage and as if dancing (on his car), he quickly pierced Sushena himself with ten arrows, and then pierced Karna, within the twinkling of an eye, with seventy sharp shafts. With ten other shafts, Bhima then felled Bhanusena, another son of Karna, with his steeds, driver, weapons, and standard, in the very sight of the latter's friends.