Mbh 12.14.2a

"'Draupadi said, "These thy brothers, O Partha, are crying and drying their palates like chatakas but thou dost not gladden them. O monarch, gladden these thy brothers, that resemble infuriated elephants (in prowess), with proper words,--these heroes that have always drunk of the cup of misery. Why, O king, while living by the side of the Dwaita lake, didst thou say unto these thy brothers then residing with thee, and suffering from cold and wind and sun, even these words, viz.,--'rushing to battle from desire of victory, we will slay Duryodhana and enjoy the earth that is capable of granting every wish. Depriving great car-warriors of their cars and slaying huge elephants, and strewing the field of battle with the bodies of car-warriors and horsemen and heroes, ye chastisers of foes, ye will perform great sacrifices of diverse kinds with presents in profusion. All these sufferings, due to a life of exile in the woods, will then end in happiness.' O foremost of all practisers of virtue, having thyself said these words unto thy brothers then, why, O hero, dost thou depress our hearts now? A eunuch can never enjoy wealth. A eunuch can never have children even as there can be no fish in a mire (destitute of water). A Kshatriya without the rod of chastisement can never shine. A Kshatriya without the rod of chastisement can never enjoy the earth. The subjects of a king that is without the rod of chastisement can never have happiness. Friendship for all creatures, charity, study of the Vedas, penances,--these constitute the duties of a Brahmana and not of a king, O best of kings! Restraining the wicked, cherishing the honest, and never retreating from battle,--these are the highest duties of kings. He is said to be conversant with duties in whom are forgiveness and wrath, giving and taking, terrors and fearlessness, and chastisement and reward. It was not by study, or gift, or mendicancy, that thou hast acquired the earth.