Mbh 4.62.1b

And that Partha of formidable prowess, displaying his fierceness, now ranged the field of battle, pouring the terrible fire of his wrath upon the sons of Dhritarashtra. And beholding the fierce prowess of Arjuna who thus scorched the hostile host, the Kuru warriors, in the very presence of Duryodhana, became dispirited and ceased to fight. And, O Bharata, having struck terror into that host and routed those mighty car-warriors, that fore-most of victors, ranged on the field. And the son of Pandu then created on the field of battle a dreadful river of blood, with waving billows, like unto the river of death that is created by Time at the end of the Yuga, having the dishevelled hair of the dead and the dying for its floating moss and straw, with bows and arrows for its boats, fierce in the extreme and having flesh and animal juices for its mire. And coats of mail and turbans floated thick on its surface. And elephants constituted its alligators and the cars its rafts. And marrow and fat and blood constituted its currents. And it was calculated to strike terror into the hearts of the spectators. And dreadful to behold, and fearful in the extreme, and resounding with the yells of ferocious beasts, keen edged weapons constituted its crocodiles. And Rakshasas and other cannibals haunted it from one end to the other. And strings of pearls constituted its ripples, and various excellent ornaments, its bubbles. And having swarms of arrows for its fierce eddies and steeds for its tortoises, it was incapable of being crossed. And the mighty car warrior constituted its large island, and it resounded with the bleat of conchs and the sound of drums. And the river of blood that Partha created was incapable of being crossed. Indeed, so swift-handed was Arjuna that the spectators could not perceive any interval between his taking up an arrow, and fixing it on the bow-string, and letting it off by a stretch of the Gandiva.”