Mbh 6.71.1b

Hearing the twang of Gandiva that resembled the roar of the thunder, all thy warriors were struck with fear and seemed, O Bharata, to melt away. Then, O king, with many huge and fleet steeds of the Kamvoja breed, and surrounded by many thousand of Gopas with a large Gopayana force and supported by the Madras, the Sauviras, the Gandharas and the Trigartas, and surrounded by all the principal Kalingas, the king of the Kalingas, and king Jayadratha accompanied by all the kings and supported by a large force of diverse races with Dussasana at their head, and fourteen thousand principal horsemen, urged by thy son, surrounded the son of Suvala (for supporting him). Then in that battle, all the Pandavas, united together, and riding on separate cars and animals, began, O bull of Bharata’s race, to slaughter thy troops.[397] And the dust raised by car-warriors and steeds and foot-soldiers, looking like a mass of clouds, made the field of battle exceedingly awful. And with a large force consisting of elephants, steeds and cars, and armed with lances and bearded darts and broad-headed shafts, Bhishma engaged in battle with the diadem decked (Arjuna). And the king of Avanti engaged with the ruler of Kasi, and the ruler of the Sindhus engaged with Bhimasena. And king Yudhishthira with his sons and counsellors engaged with Salya, the famous chief of the Madras. And Vikarna engaged with Sahadeva, and Chitrasena with Sikhandin. And the Matsyas, O king, engaged with Duryodhana, and Sakuni; and Drupada and Chekitana, and that mighty car-warrior Satyaki engaged in battle with the high-souled Drona aided by his son. And Kripa and Kritavarman both rushed against Dhrishtadyumna. And thus, all over the field, rushing bodies of horses, of elephants and cars, engaged with one another in battle. And although there were no clouds in the sky, yet flashes of lightning were seen. And all the points of the compass were covered with dust.