Mahabharata 3.187.9

3.187.9

pṛthivyāṃ kṣatriyendrāśca pārthivāḥ svargakāṅkṣiṇaḥ |
yajante māṃ tathā vaiśyāḥ svargalokajigīṣavaḥ || 9 ||

On earth the Kshatriya chiefs that rule over men, in performing their sacrifices from desire of obtaining heaven, and the Vaisyas also in performing theirs from desire of winning those happy regions, all worship me at such times and by those ceremonials. It is I who, assuming the form of Sesha support (on my head) this earth bounded by the four seas and decked by Meru and Mandara. And O regenerate one, it is I who, assuming the form of a boar, had raised in days of yore this earth sunk in water. And, O best of Brahmanas, it is I who, becoming the fire that issues out of the Equine mouth, drink up the waters (of the ocean) and create them again. In consequence of my energy from my mouth, my arms, my thighs, and my feet gradually sprang Brahmanas and Kshatriyas and Vaisyas and Sudras. It is from me that the Rik, the Sama, the Yajus, and the Atharvan Vedas spring, and it is in me that they all enter when the time cometh. Brahmanas devoted to asceticism, they that value Peace as the highest attribute, they that have their souls under complete control, they that are desirous of knowledge, they that are freed from lust and wrath and envy, they that are unwedded to things of the earth, they that have their sins completely washed away, they that are possessed of gentleness and virtue, and are divested of pride, they that have a full knowledge of the Soul, all worship me with profound meditation.