Mahabharata 7.20.26

7.20.26

nāgānaśvānpadātīṃśca rathino gajasādinaḥ |
raudrā hastavatā muktāḥ pramathnanti sma sāyakāḥ || 26 ||

Endued with great activity and slaughtering the foe ceaselessly, the twang of the bow-string, as he stretched his bow, was heard in all directions. Fierce arrows shot by that warrior endued with great lightness of hand, crushed elephants and steeds and foot-soldiers and car-warriors and elephant-riders. As a mighty mass of roaring clouds in summer with violent winds (blowing) poureth a shower of hail-stones, so did Drona pour his arrowy showers and inspired fear in the hearts of his foes. That mighty hero, that great bowman, that dispeller of the fears of his friends, careered in all directions (of the field) agitating the (hostile) host. The bow, decked with gold, of Drona of immeasurable energy, was seen in all directions like the flashes of lightning in the clouds. The beautiful altar on his banner, as he careered in battle, O Bharata, was seen to resemble a crest or Himavat. The slaughter that Drona caused among the Pandava troops was very great, resembling that caused by Vishnu himself, the adored of both the gods and Asuras, among the Daitya host. Heroic, truthful in speech, endued with great wisdom and might, and possessed of prowess incapable of being baffled, the illustrious Drona caused a river to flow there that was fierce and capable of striking the timid with fear. Coats of mail formed its waves, and standards its eddies. And it carried away (as it ran) large numbers of mortal creatures.