Mahabharata Udyoga Parva Chapter 141:2

Mahabharata Udyoga Parva (Bhagwat Yana Parva) Chapter 141:2 If king Yudhishthira, of virtuous soul and well-controlled senses, cometh to know me as the firstborn son of Kunti, he will never accept the kingdom. If, again, O slayer of Madhu, this mighty and swelling empire becometh mine, I shall, O repressor of foes, certainly make it over to Duryodhana only. Let Yudhishthira of virtuous soul become king for ever. He that hath Hrishikesa for his guide, and Dhananjaya and that mighty car-warrior Bhima for his combatants, as also Nakula and Sahadeva, and the sons of Draupadi, is fit, O Madhava, to rule over the whole earth. Dhrishtadyumna, the prince of the Panchalas, that mighty car-warrior Satyaki, Uttamaujas, Yudhamanyu, the prince of Somakas who is devoted to truth, the ruler of the Chedis, Chekitana, the invincible Sikhandin, the Kekaya brothers, all of the hue of Indragopaka insects, Bhimasena's uncle Kuntibhoja of high soul and possessed of steeds endued with the colours of the rainbow, the mighty car-warrior Syenajit, Sanka the son of Virata, and thyself, O Janardana, like an ocean,—great is this assemblage, O Krishna, of Kshatriyas (that hath been made by Yudhishthira). This blazing kingdom, celebrated among all the kings of the earth, is already won (by Yudhishthira). O thou of Vrishni's race, a great sacrifice of arms is about to be celebrated by Dhritarashtra's son. Thou, O Janardana, wilt be the Upadrashtri of that sacrifice. The office of Adhyaryu also, O Krishna, in that sacrifice, will be thine. The ape-bannered Vibhatsu accoutred in mail will be the Hotri (his bow), Gandiva will be the sacrificial ladle, and the prowess of the warriors will be the clarified butter (that is to be consumed). The weapons called Aindra, Pasupata, Brahma, and Sthunakarna, applied by Arjuna, will, O Madhava, be the mantras (of that sacrifice). Resembling his father, or perhaps, excelling him in prowess, Subhadra's son (Abhimanyu) will be the chief Vedic hymn to be chanted. That destroyer of elephant ranks, that utterer of fierce roars in battle, that tiger among men, the exceedingly mighty Bhima, will be Udgatri and Prastotri in this sacrifice. King Yudhishthira of virtuous Soul, ever engaged in Yapa and Homa, will himself be the Brahma of that sacrifice. The sounds of conchs, tabors, and drums, and the leonine roaring rising high in the welkin, will be the calls upon the invited to eat. The two sons of Madri, Nakula and Sahadeva, of great fame and prowess, will be the slayers of the sacrificial animals; rows of bright cars furnished with standards of variegated hue, will, O Govinda, be stakes (for tying the animals), O Janardana, in this sacrifice. Barbed arrows and Nalikas, and long shafts, and arrows with heads like calf's tooth, will play the part of spoons (wherewith to distribute the Soma juice) while Tomaras will be the vessels of Soma, and bows will be pavitras. The swords will be Kapalas, the heads (of slain warriors) the Purodasas and the blood of warriors the clarified butter. O Krishna, in this sacrifice, the lances and bright maces (of the warriors) will be pokers (for stirring the sacrificial fire) and the corner stakes (for keeping the fire-wood from falling down).