The Great Epic of the Bhārata dynasty 7.170.14

7.170.14

tato nirmathyamānasya sāgarasyeva nisvanaḥ |
abhavattasya sainyasya sumahānadbhutopamaḥ || 14 ||

The Pandus and the Panchalas had become fierce in consequence of Drona's slaughter. Great was the violence of that collision, on the field of battle, between those warriors, all of whom were cheerful and filled with rage and inspired with certain hopes of victory. Like a mountain, striking against a mountain, or an ocean against an ocean, O monarch, was that collision between the Kurus and the Pandavas. Filled with joy, the Kuru and the Pandava warriors beat thousands of drums. The loud and stunning uproar that arose from among those troops resembled that of the ocean itself while churned (of old by the gods and the Danavas). Then Drona's son, aiming at the host of the Pandavas and the Panchalas, invoked the weapon called Narayana. Then thousands of arrows with blazing mouths appeared in the welkin, resembling snakes of fiery mouths, that continued to agitate the Pandavas. In that dreadful battle, those shafts, O king, like the very rays of the sun in a moment shrouded all the points of the compass, the welkin, and the troops. Innumerable iron balls also, O king, then appeared, like resplendent luminaries in the clear firmament. Sataghnis, some equipped with four and some with two wheels, and innumerable maces, and discs, with edges sharp as razor and resplendent like the sun, also appeared there. Beholding the welkin densely shrouded with those weapons, O bull of Bharata's race, the Pandavas, the Panchalas, and the Srinjayas, became exceedingly agitated.