Mbh 12.75.2a

"'Bhishma said, "The king should be liberal and should perform sacrifices, O Bharata! He should be observant of vows and penances, and should be devoted to the duty of protecting his subjects. Righteously protecting all his subjects, he should honour all righteous persons by standing up when they come and by making gifts unto them. If the king regards it, righteousness becomes regarded everywhere. Whatever acts and things are liked by the king are liked by his subjects. Unto his foes the king should always be like Death, with the rod of chastisement uplifted in his hands. He should exterminate robbers everywhere in his kingdom and never pardon any one from caprice. The king, O Bharata, earns a fourth part of the merit that his subjects earn under his protection. By only protecting his subjects the king acquires a fourth part of the merit that his subjects acquire by study, by gifts, by pouring libations, and by worshipping the gods. The king acquires a fourth part also of the sin that his subjects commit in consequence of any distress in the kingdom arising from the king's neglect in discharging the duty of protection. Some say that the king earns a moiety, and some say the full measure, of whatever sin is caused by his becoming cruel and untruthful in speech. Listen now to the means by which the king may be cleansed of such sins. If the king fails to restore to a subject the wealth that has been stolen away by thieves, he should then compensate the injured from his own treasury, or, in case of inability, with wealth obtained from his dependents. All the orders should protect the wealth of a Brahmana even as they should the Brahmana's boy or life. The person that offends against Brahmanas should be exiled from the kingdom. Everything is protected by protecting the Brahmana's wealth. Through the grace of the Brahmana, which may thus be secured, the king becomes crowned with success.