Mbh 5.135.2a

“‘The mother said, “All the acts of those that are wise, are (undertaken), O son, for the sake of virtue and profit. Eyeing these (virtue and profit) only, I urge thee, O Sanjaya, to battle. The fit hour hath come for exhibiting thy prowess. If at such a time thou dost not resort to action, then disrespected by the people thou wouldst do that which would be most disagreeable to me. If, O Sanjaya, thou art about to be stained with infamy and I do not (from affection) tell thee anything, then that affection, worthless and unreasonable, would be like that of the she-ass’s for her young. Do not tread the path that is disapproved by the wise and adopted by the fool. Great is the ignorance here. Innumerable creatures of the world have taken refuge in it. If thou, however, adoptest the behaviour of the wise, thou wilt then be dear to me. Indeed, if thou hast recourse to virtue and profit, if with God above thou reliest upon human exertion, if thy conduct becometh like that of the good, then it is by this and not by any other means that thou wilt become dear to me. He that taketh delight in sons and grandsons that are well-instructed (enjoyeth a delight that is real). He, on the other hand, that taketh delight in a son who is destitute of exertion, refractory, and wicked minded, hath not the very object accomplished for which a son is desired. Those worst of men that never do what is proper and always do what is censurable, do not obtain happiness here or hereafter. A Kshatriya, O Sanjaya, hath been created for battle and victory. Whether he winneth or perisheth, he obtaineth the region of Indra. The happiness that a Kshatriya obtaineth by reducing his foes to subjection is such that the like of it doth not exist in heaven in the sacred region of Indra. Burning with wrath, a Kshatriya of great energy, if vanquished many times, should wait desiring to vanquish his foes.