Mbh 6.104.1c

And steeds from diverse countries, decked with ornaments of gold, were seen, by hundreds and thousands, to run with the speed of the wind. And horse-riders, deprived of their horses, and armed with swords were in that battle seen to run, or made to run (by others assailing them). Elephant, meeting with a flying elephant in that dreadful battle, proceeded, quickly crushing foot-soldiers and steeds. And, similarly, O king those prodigious creatures crushed many cars in that battle, and cars also, coming upon fallen steeds crushed them (in their course). And steeds too, in the press of battle, crushed many foot-soldiers, O king (with their hoofs). And thus, O monarch, they crushed one another in diverse ways.[469] And in that fierce and awful battle there flowed a terrible river of bloody current. And heaps of bows obstructed its straight course, and the hair (of slain warriors) formed its moss. And (broken) cars formed its lakes, and arrows its eddies. And steeds formed its fishes. And heads (severed from trunks) formed its blocks of stone. And it abounded with elephants that formed its crocodiles. And coats of mail and head-gears formed its froth. And bows (in the hands of the warriors) constituted the speed of its current, and swords its tortoises. And banners and standards in profusion formed the trees on its banks. And mortals constituted its banks which that river continually ate away. And it abounded with cannibals that formed its swans. And that stream (instead of swelling the ocean with its discharge) swelled the population of Yama’s kingdom. And brave Kshatriyas,--mighty car-warriors,--casting off all fear, O king, sought to cross that river with the aid of cars, elephants, and steeds that played the part of rafts and boats. And as the river Vaitarani beareth all departed spirits towards the domains of the King of the Dead, so that river of bloody current bore away all timid men deprived of their senses in a swoon.