Mbh 8.83.1d

Upon the fall of his brother Citrasena, Karna, filled with wrath and displaying his prowess, put the Pandava host to flight, at which Nakula rushed against that warrior of immeasurable energy. Bhima, having slain there (at the very sight of Karna) the vindictive Duhshasana, took up a little quantity of his blood, and, endued with stentorian lungs, he said these words in the hearing of all those foremost of heroes of the world, "O wretch amongst men, here I drink thy life-blood from thy throat. Filled with joy, abuse us once more, saying 'beast, beast' (as thou didst before)." And he continued, "They that danced at us then, saying, 'beast, beast,' even we will dance at them now, repeating their own words. Our sleep at the palace at Pramanakoti, the administration of deadly poison to our food, the bites of black cobras, the setting fire to the house of lac, the robbing of our kingdom by gambling, our exile in the woods, the cruel seizure of Draupadi's beautiful tresses, the strokes of shafts and weapons in battle, our miseries at home, the other kinds of sufferings we endured at Virata's abode, all these woes borne by us through the counsels of Shakuni and Duryodhana and Radha's son, proceeded from thee as their cause. Through the wickedness of Dhritarashtra and his son, we have endured all these woes. Happiness has never been ours." Having said these words, O king, the victorious Vrikodara, once more spoke these words unto Keshava and Arjuna. Indeed, bathed in blood, with blood flowing from his wounds, with face exceedingly red, filled with great wrath, Bhimasena endued with great activity, said these words, "Ye heroes, that which I had vowed in respect of Duhshasana in battle, I have accomplished today. I will soon accomplish my other vow by slaying that second beast, viz., Duryodhana, in this sacrifice of battle. Striking the head of that wicked-souled one with my foot in the presence of the Kauravas, I shall obtain peace."