Mahabharata Bhishma Parva Chapter 43:5

Mahabharata Bhishma Parva (Bhagavat-Gita Parva) Chapter 43:5 A man is the slave of wealth, but wealth is no one's slave. This is very true, O king, and bound I have been with wealth by the Kauravas. I must, O king, fight for their sake. This is my opinion. I therefore, speak like a eunuch in asking thee, Battle excepted, what dost thou desire? Yudhishthira said, 'Alas, I ask thee, therefore, O preceptor, listen to my words.'—Saying this, the king, greatly agitated and deprived of his sense, stood silent. Sanjaya continued.—"Understanding, however, what he intended to say, Gautama (Kripa) replied to him, saying,—'I am incapable of being slain, O king. Fight, and obtain victory. I am gratified with thy coming. Rising every day [from bed] I will pray for thy victory, O monarch. I say this to thee truly.'—Hearing, O king, these words of Gautama, and paying him due honours, the king proceeded thither where the ruler of the Madra was. Saluting Salya and walking round him the king said unto that invincible warrior those words that were for his own benefit. Yudhishthira said,—'Obtaining thy permission, O invincible one, I will fight without incurring sin, and permitted by thee, O king, I will vanquish (my) valourous foes. Salya said, 'If, having resolved on fight, thou hadst not come to me (thus), I would have, O king, cursed thee for thy overthrow in battle. I am gratified (with thee) and honoured (by thee). Let it be as thou wishest. I grant thee permission, fight and obtain victory. Speak, O hero, for what hast thou any need? What shalt I give thee? Under these circumstances, O king, battle excepted, what dost thou desire? A man is the slave of wealth but wealth is no one's slave. This is true, O king. Bound I have been with wealth by the Kauravas, O nephew, it is for this that I am speaking to thee like a eunuch,—I will accomplish the desire thou mayst cherish. Battle excepted, what dost thou wish. Yudhishthira said, 'Think, O king, daily of what is for my great good. Fight, according to thy pleasure, for the sake of the foe. This is the boon that I solicit. Salya said, 'Under these circumstances, say, O best of kings what aid shall I render thee? I shall, of course, fight for the sake of (thy) enemy, for I have been made one of their party by the Kauravas with their wealth. Yudhishthira said, 'Even that is my boon, O Salya, which was solicited by me during the preparations (for the fight). The energy of the Suta's son (Karna) should be weakened by thee in battle. Salya said, 'This thy wish, O Yudhishthira, shall be accomplished, O son of Kunti. Go, fight according to thy pleasure. I shall look after thy victory. Sanjaya continued, "Having obtained the permission of his maternal uncle, the ruler of the Madra, the son of Kunti, surrounded by his brothers, came out of that vast army. Vasudeva then went to Radha's son on the field of battle.