Mahabharata 12.263.35

12.263.35

vāyubhakṣastataḥ paścādbahūnvarṣagaṇānabhūt |
na cāsya kṣīyate prāṇastadadbhutamivābhavat || 35 ||

"Bhishma continued, 'Cherishing a distaste for the world, and through the grace also of the gods, that foremost of Brahmanas entered the woods and commenced to undergo the austerest of penances. Subsisting upon Such fruits and roots as remained after serving the deities and guests, the mind of that regenerate person, O monarch, was firmly set upon virtue. Gradually, the Brahmana, renouncing fruits and roots, betook himself to leaves of trees as his food. Then renouncing leaves, he took to water only as his subsistence. After that he passed many years by subsisting upon air alone. All the while, his strength did not diminish. This seemed exceedingly marvellous. Devoted to virtue and engaged in the practice of the severest austerities, after a long time he acquired spiritual vision. He then reflected, saying unto himself, 'If, being gratified with anybody, I give him wealth, my speech would never be untrue.' With a face lighted up by smiles, he once more began to undergo severer austerities. And once more, having won (higher) success, he thought that he could, by a fiat of the will, then create the very highest objects. 'If, gratified with any person whatsoever I give him even sovereignty, he will immediately become a king, for my words will never be untrue.' While he was thinking in this way, Kundadhara, induced by his friendship for the Brahmana and no less by the ascetic success which the Brahmana had achieved, showed himself, O Bharata (unto his friend and devotee). Meeting with him the Brahmana offered him worship according to the observances ordained. The Brahmana, however, felt some surprise, O king. Then Kundadhara addressed the Brahmana, saying, 'Thou hast now got an excellent and spiritual eye. Behold with this vision of thine the end that is attained by kings, and survey all the worlds besides.' The Brahmana then, with his spiritual vision, beheld from a distance thousands of kings sunk in hell.'