Mahabharata 6.89.19

6.89.19

nānārūpāṇi śastrāṇi visṛjanto mahārathāḥ |
anyonyamabhidhāvantaḥ saṃprahāraṃ pracakrire |
vyatiṣaktaṃ mahāraudraṃ yuddhaṃ bhīrubhayāvaham || 19 ||

Leaving Ghatotkacha then they all fled away. Then commenced in that part of the field a dreadful battle between those high-souled warriors and thine, both of whom were unretreating. Mighty car-warriors, hurling diverse kinds of the weapons, chased and smote one another. That fierce battle striking terror into the hearts of the timid, was such that the different classes of combatants became entangled with one another. Horses engaged with elephants and foot-soldiers with car-warriors. And challenging one another, O king, they engaged in the fight. And in consequence of that clash of cars, steeds, elephants, and foot-soldiers, a thick dust appeared, raised by the car-wheels and the tread (of those combatants and animals). And that dust, thick and of the colour of reddish smoke, shrouded the field of battle. And the combatants were unable to distinguish their own from the foe. Sire recognised not the son, and son recognised not the sire, in that dreadful engagement which made the hair stand on end and in which no consideration was shown (by any one for any body). And the noise made by the hissing weapons and the shouting combatants resembled, O chief of Bharata's race, that made by departed spirits (in the infernal regions). And there flowed a river whose current consisted of the blood of elephants and steeds and men. And the hair (of the combatants) formed its weeds and moss.