The Great Epic of the Bhārata dynasty 7.172.56

7.172.56

dadarśa bhṛśadurdarśaṃ sarvadevairapīśvaram |
aṇīyasāmaṇīyāṃsaṃ bṛhadbhyaśca bṛhattaram || 56 ||

"Vyasa said, 'O highly significant is this matter that thou enquirest of me from surprise. I will tell thee everything; listen attentively. He that is called Narayana is older than the oldest ones. For accomplishing some purpose, that creator of the universe took his birth as the son of Dharma. On the mountain of Himavat he underwent the severest ascetic austerities. Endued with mighty energy, and resembling fire or the sun (in splendour), he stood there with arms upraised. Possessed of eyes like: lotus-petals, he emaciated himself there for sixty-six thousand years, subsisting all the while upon air alone. Once more undergoing severe austerities of another kind for twice that period, he filled the space between earth and heaven with his energy. When by those austerities, O sire, he became: like Brahma he then beheld the Master, Origin, and Guardian of the Universe, the Lord of all the gods, the Supreme Deity, who is exceedingly difficult of being gazed at, who is minuter than the minutest and larger than, the largest, who is called Rudra, who is the lord of all the superior ones, who is called Hara and Sambhu, who has matted locks on his head, who is the infuser of life into every form, who is the First cause of all immobile: and mobile things, who is irresistible and of frightful aspect, who is of fierce wrath and great Soul, who is the All-destroyer, and of large heart;