Mahabharata Udyoga Parva Chapter 141:3

Mahabharata Udyoga Parva (Bhagwat Yana Parva) Chapter 141:3 The disciples of Drona and Kripa, the son of Saradwat, will be the Sadasyas (assisting priests). The arrows shot by the wielder of Gandiva and by (other) mighty car-warriors, and by Drona and Drona's son, will play the part of ladles for distributing the Soma. Satyaki will discharge the duties of the chief assistant of the Adhyaryu. Of this sacrifice, Dhritarashtra's son will be installed as the performer, while this vast army will be his wife. O thou of mighty arms, when the nocturnal rites of sacrifice will begin, the mighty Ghatotkacha will play the part of the slayer of (devoted) victims. The mighty Dhrishtadyumna, who sprang into life from the sacrificial fire, having for its mouth the rites celebrated with mantras, will, O Krishna, be the Dakshina of that sacrifice. For those harsh words, O Krishna, that I said before unto the sons of Pandu for the gratification of Dhritarashtra's son,—for that wicked conduct of mine,—I am consumed with repentance. When O Krishna, thou wilt behold me slain by Arjuna, then will the Punachiti of this sacrifice commence. When the (second) son of Pandu will drink the blood of the loudly roaring Dussasana, then will the Soma-drinking of this sacrifice have taken place! When the two princes of Panchala (Dhrishtadyumna and Sikhandin) will overthrow Drona and Bhishma, then, O Janardana, will this sacrifice be suspended for an interval. When mighty Bhimasena will slay Duryodhana, then, O Madhava, will this sacrifice of Dhritarashtra's son be concluded. When the wives of Dhritarashtra's sons and grandsons assembled together, deprived, O Kesava, of their husbands and sons and without protectors, will indulge in lamentations with Gandhari in their midst, on the field of battle haunted by dogs and vultures and other carnivorous birds, then, O Janardana, will the final bath of this sacrifice take place. I pray to thee, O bull of the Kshatriya race, let not the Kshatriyas, old in learning and old in years, perish miserably, O Janardana, for thy sake. Oh, let this swelling host of Kshatriyas perish by means of weapons on that most sacred of all spots in the three worlds, viz. Kurukshetra, O Kesava. O thou of eyes like lotus-leaves, accomplish on this spot what thou hast in thy mind, so that, O thou of Vrishni's race, the whole Kshatriya order may attain to heaven. As long, O Janardana, as the hills and the rivers will last, so long will the fame of these achievements last. The Brahmanas will recite this great war of the Bharatas. The fame, O thou of Vrishni's race, that they achieve in battles is the wealth that Kshatriyas own. O Kesava, bring Kunti's son (Arjuna) before me for battle, keeping for ever this our discourse a secret, O chastiser of foes.