Matsyapurana 175.31

175.31

sa evamukto munibhir munir marmasu tāḍitaḥ
jagarhe tānṛṣigaṇān vacanaṃ cedamabravīt //

Those words went deep into the heart of Ūrva who despising these Risis said 'the highest duty of the Ṛiṣis as enjoined by the Sastras is to pass their days in the forest, living on the produce of nature for a Brâhmanı ought to strictly observe Brahmacharya In that case he can shake the position of Brahmâ The householders have threefold duties to discharge but those of them living in the forest ought to follow our ways The Risis living merely on water air, grain and on things powdered by stones simply warming themselves in the fires burning all round them, practising Dasatapâh and Panchatapâh, all of them thus pursuing the course of rigid asceticism, seek final emancipation by leading a life of celibacy—31 36