Mbh 6.59.2d

And the army of the sons of Pandu, indulging in loud wails, including the very leaders of their best of car-warriors, was seen to be as confounded as a very herd of kine. The delighter of the Yadavas then, beholding that army thus routed, said unto Partha, stopping that best of cars (which he guided), these words, ‘The hour is now come, O Partha, which was desired by thee. Strike Bhishma, O tiger among men, else, thou wilt lose the senses. O hero, formerly, in the conclave of kings, thou hadst said,--“I will slay all the warriors of Dhritarashtra’s sons, headed by Bhishma and Drona--all in fact, who will fight with me in battle.” O son of Kunti, O chastiser of foes, make those words of thine true. Behold, O Vibhatsu, this army of thine is being routed on all sides. Behold, the kings in Yudhishthira’s host are all flying away, seeing Bhishma in battle, who looketh like the Destroyer himself with wide-open mouth. Afflicted with fear, they are making themselves scarce like the weaker animals at sight of the lion.’ Thus addressed, Dhananjaya replied unto Vasudeva, saying, ‘Plunging through this sea of the hostile host, urge on the steeds to where Bhishma is. I will throw down that invincible warrior, the reverend Kuru grandsire’. Then Madhava urged those steeds of silvery hue to where, O king, the car of Bhishma was, that car which, like the very sun, was incapable of being gazed at. And beholding the mighty-armed Partha thus rushing to an encounter with Bhishma, the mighty army of Yudhishthira rallied for battle. Then Bhishma, that foremost of warriors amongst the Kurus, repeatedly roaring like a lion, quickly covered Dhananjaya’s car with an arrowy shower. In a moment that car of his, with standard and charioteer, became invisible, shrouded with that arrowy downpour. Vasudeva, however, endued with great might fearlessly and summoning all his patience, began to guide those steeds mangled by Bhishma’s shafts.