Mahabharata Aswamedha Parva Chapter 60:2

Mahabharata Aswamedha Parva (Anugita Parva) Chapter 60:2 Of the sons of Pandu there were then three Akshauhinis. After the slaughter of innumerable heroes, protected by Arjuna, they came to battle. The Suta's son Karna, though a fierce warrior, encountering Partha, came to his end on the second day, like an insect encountering a blazing fire. After the fall of Karna, the Kauravas became dispirited and lost all energy. Numbering three Akshauhinis, they gathered round the ruler of the Madras. Having lost many car-warriors and elephants and horsemen, the remnant of the Pandava army, numbering one Akshauhini and penetrated with cheerlessness, supported Yudhishthira (as their leader). The king Yudhishthira, in the battle that ensued, achieved the most difficult feats and slew, before half the day was over, the king of the Madras. After the fall of Salya, the high-souled Sahadeva of immeasurable prowess slew Sakuni, the man who had brought about the quarrel (between the Pandavas and the Kurus). After the fall of Sakuni, the royal son of Dhritarashtra, whose army had suffered an extensive carnage and who on that account had become exceedingly cheerless, fled from the field, armed with his mace. Then Bhimasena of great prowess, filled with wrath, pursued him and discovered him within the waters of the Dwaipayana lake. With the remnant of their army, the Pandavas surrounded the lake and, filled with joy, encountered Duryodhana concealed within the waters. Their wordy shafts, penetrating through the waters, pierced Duryodhana. Rising up from the lake, the latter approached the Pandavas, armed with his mace, desirous of battle. Then, in the great battle that ensued, the royal son of Dhritarashtra was slain by Bhimasena who put forth his great prowess, in the presence of many kings. After this the remnant of the Pandava army, as it slept in the camp, was slaughtered at night time by Drona's son who was unable to put up with the slaughter of his father (at the hands of Dhrishtadyumna). Their sons slain, their forces slain, only the five sons of Pandu are alive with myself and Yuyudhana. With Kripa and the Bhoja prince Kritavarman, the son of Drona represents the unslain remnant of the Kaurava army. Dhritarashtra's son Yuyutsu also escaped slaughter in consequence of his having adopted the side of the Pandavas. Upon the slaughter of the Kaurava king (Suyodhana) with all his followers and allies, Vidura and Sanjaya have come to the presence of king Yudhishthira the just. Even thus did that battle occur, O lord, for eight and ten days. Many kings of Earth, slain therein, have ascended to Heaven. Vaisampayana continued, 'The Vrishnis, as they heard, O king, that dreadful account became filled with grief and sorrow and pain.