Mbh 7.174.1a

“Sanjaya said, ‘Beholding the mighty-armed Ghatotkacha, O king, proceeding towards the car of Suta’s son, Karna, for slaughtering him in battle, thy son Duryodhana addressing Duhsasana, said these words, “The Rakshasa, seeing the prowess of Karna in battle, is speedily advancing against him. Resist that mighty car-warrior. Surrounded by a mighty force proceed to that spot where the mighty Karna, the son of Vikartana, is contending with the Rakshasa in battle. O giver of honours, surrounded by troops and exerting thyself vigorously, protect Karna in battle. Let not the terrible Rakshasa slay Karna in consequence of our carelessness.” Meanwhile, O king, Jatasura’s mighty son, that foremost of smiters, approaching Duryodhana, said unto him, “O Duryodhana, commanded by thee, I desire to slay, with their followers, thy foes of celebrity, viz., the Pandavas, those warriors incapable of being easily defeated in battle. My father was mighty Jatasura, that foremost of Rakshasa. Formerly, having performed some Rakshasa slaying incantations, the despicable sons of Pritha slew him. I desire to worship my dead sire by offering him the blood of his foes, and their flesh, O monarch! it behoveth thee to grant me permission.” The king, thus addressed, became exceedingly delighted and said unto him repeatedly, “Aided by Drona and Karna and others, I am quite competent to vanquish my foes. Commanded, however, by me, O Rakshasa, go thou to battle and slay Ghatotkacha in the fight--that Rakshasa of fierce deeds, born of man, ever devoted to the welfare of the Pandavas, and always slaying our elephants and steeds and car-warriors in battle, himself all the while staying in the welkin. O, despatch him to Yama’s abode.” Saying, “so be it,” and summoning Ghatotkacha to the fight, Jatasura’s son shrouded the son of Bhimasena with diverse kinds of weapons.