The Great Epic of the Bhārata dynasty 3.247.21

3.247.21

na vartayantyāhutibhiste nāpyamṛtabhojanāḥ |
tathā divyaśarīrāste na ca vigrahamūrtayaḥ || 21 ||

And there dwell certain beings named Ribhus. They are the gods of the gods themselves. Their regions are supremely blessed, and are adored even by the deities. These shine by their own light, and bestow every object of desire. They suffer no pangs that women might cause, do not possess worldly wealth, and are free from guile. The Ribhus do not subsist on oblations, nor yet on ambrosia. And they are endued with such celestial forms that they cannot be perceived by the senses. And these eternal gods of the celestials do not desire happiness for happiness' sake, nor do they change at the revolution of a Kalpa. Where, indeed, is their decrepitude or dissolution? For them there is neither ecstasy, nor joy, nor happiness. They have neither happiness nor misery. Wherefore should they have anger or aversion then, O Muni? O Mudgala, their supreme state is coveted even by the gods. And that crowning emancipation, hard to attain, can never be acquired by people subject to desire. The number of those deities is thirty-three. To their regions repair wise men, after having observed excellent vows, or bestowed gifts according to the ordinance. Thou also hast easily acquired that success by thy charities. Do thou, by effulgence displayed by virtue of thy ascetic austerities, enjoy that condition obtained by thy meritorious acts. Such, O Brahmana, is the bliss of heaven containing various worlds.