Mbh 12.24.1b

By transgressing the scriptures (one incurs sin), while by obeying them one may live fearlessly. That king who, guided by an understanding based upon the scriptures and disregarding lust and wrath, behaves impartially, like a father, towards all his subjects, never incurs sin. O thou of great splendour, if a king, afflicted by destiny, fails to accomplish an act which he should, such failure would not be called a trespass. By force and policy should the king put down his foes. He must not suffer sin to be perpetrated in his kingdom but should cause virtue to be practised. Brave men, those that are respectable in their practices, they that are virtuous in their acts, they that are possessed of learning, O Yudhishthira, Brahmanas conversant with Vedic texts and rites, and men of wealth, should especially be protected. In determining suits and accomplishing religious acts, they that are possessed of great learning should alone be employed. A prudent king will never repose his confidence upon one individual, however accomplished. That king who does not protect his subjects, whose passions are ungovernable, who is full of vanity, who is stained with haughtiness and malice, incurs sin and earns the reproach of tyranny. If the subjects of a king, O monarch, waste away from want of protection and are afflicted by the gods and ground down by robbers, the sin of all this stains the king himself. There is no sin, O Yudhishthira, in doing an act with heartiness, after full deliberation, and consultation with men capable of offering good advice. Our tasks fail or succeed through destiny. If exertion, however, be applied, sin would not touch the king. I shall recite to thee, O tiger among kings, the story of what happened to an ancient king of the name of Hayagriva, O son of Pandu,--the story, viz., of the heroic Hayagriva of unstained deeds, who after having slain a large number of his foes in battle, was himself defeated and slain while without a follower by his side.