Mahabharata Bhishma Parva Chapter 59:5

Mahabharata Bhishma Parva (Bhagavat-Gita Parva) Chapter 59:5 And that foremost of bowmen, the chief of the Sinis, quickly rushing at those troops, came to Arjuna's side like Vishnu coming to the aid of the slayer of Vritra. And that foremost warrior of Sini's race cheerfully said unto Yudhishthira's host all the combatants of which had been frightened by Bhishma and whose elephants, steeds, cars, and numberless standards had been mangled and broken into pieces, and which was flying away from the field, these words, 'Ye Kshatriyas, where do ye go? This is not the duty of the righteous as hath been declared by the ancients. Ye foremost of heroes, do not violate your pledges. Observe your own duties as heroes'. Beholding that those foremost of kings were flying together from the field of battle, and marking the mildness with which Partha fought, and beholding also that Bhishma was exerting himself very powerfully in battle, and that the Kurus were rushing from all sides, the younger brother of Vasava, the high-souled protector of all the Dasarhas, unable to bear it all, addressed the renowned grandson of Sini, and applauding him, said,—'O hero of Sini's race, they that are retreating, are, indeed, retreating. They that are yet staying, O thou of the Satwata race, let them also go away. Behold, I will soon throw Bhishma down from his car, and Drona also in battle, with all their followers. There is none in the Kuru host, O thou of the Satwata race, who is able to escape my angry self. Therefore, taking up my fierce discus, I will slay Bhishma of high vows. And slaying in battle those two foremost of car-warriors, viz., Bhishma along with his followers and Drona also, O grandson of Sini, I will gladden Dhananjaya, and the king, and Bhima, and the twin Aswins. And slaying all the sons of Dhritarashtra and all those foremost of kings who have embraced their side, I will joyfully furnish king Ajatasatru with a kingdom today.' Saying this, Vasudeva's son, abandoning (the reins of) the steeds, jumped down from the car, whirling with his (right) arm his discus of beautiful nave with edge sharp as a razor, effulgent as the sun and possessed of force equal to that of a thousand bolts of heaven. And making the earth tremble under his tread, the high-souled Krishna rushed impetuously towards Bhishma. And that grinder of foes, the younger brother of the chief of the gods, excited with wrath, rushed towards Bhishma staying in the midst of his troops, like a lion from desire of slaying upon a prince of elephants blinded with fury and staying proudly for the attack. And the end of his yellow garments waving in the air looked like a cloud charged with lightning in the sky. And that lotus of a discus called Sudarsana, having for its stalk the beautiful arm of Saurin, looked as beautiful as the primeval lotus, bright as the morning sun, which sprung from the navel of Narayana.