Mahabharata 12.72.17

12.72.17

yo hi dogdhrīmupāste tu sa nityaṃ labhate payaḥ |
evaṃ rāṣṭramupāyena bhuñjāno labhate phalam || 17 ||

Similarly, the king who rules his kingdom by the aid of proper means, reaps much fruit from it. By protecting a kingdom properly and ruling it by the aid of judicious means, a king, O Yudhishthira, may succeed in always obtaining much wealth. The earth, well protected by the king, yields crops and gold (to the ruler and the ruled) even like a gratified mother yielding milk to her child. Imitate the example, O king, of the flowerman and not of the charcoal-maker. Becoming such and discharging, the duty of protection, thou mayst be able to enjoy the earth for ever. If in attacking an enemy's kingdom thy treasury becomes exhausted, thou mayst refill it by taking wealth from all except Brahmanas. Let not thy heart be moved, even when thou art in great distress, upon seeing Brahmanas possessed of wealth. I need not speak then of what thou shouldst do when thou art in affluence. Thou shouldst give them wealth to the best of thy power and as they deserve and protect them, comforting them on all occasions. By conducting thyself in this way, thou mayst acquire such regions hereafter as are most difficult of acquisition. Adopting such virtuous behaviour, do thou protect thy subjects. Thou mayst then obtain, O delighter of the Kurus, fame that is everlasting, high, and pure. Protect thy subjects righteously, O son of Pandu, for no regret or pain will then be thine.