Vishnupurana 2.5.14

2.5.14

yo 'nantaḥ paṭhyate siddhair devadevarṣipūjitaḥ
sahasraśirasā vyaktasvastikāmalabhūṣaṇaḥ //

Below the seven Pátálas is the form of Vishńu, proceeding from the quality of darkness, which is called Śesha, the excellencies of which neither Daityas nor Dánavas can fully enumerate. This being is called Ananta by the spirits of heaven, and is worshipped by sages and by gods. He has a thousand heads, which are embellished with the pure and visible mystic sign: and the thousand jewels in his crests give light to all the regions. For the benefit of the world he: deprives the Asuras of their strength. He rolls his eyes fiercely, as if intoxicated. He wears a single ear-ring, a diadem, and wreath upon each brow; and shines like the white mountains topped with flame. He is clothed in purple raiment, and ornamented with a white necklace, and looks like another Kailása, with the heavenly Gangá flowing down its precipices. In one hand he holds a plough, and in the other a pestle; and he is attended by Váruńí (the goddess of wine), who is his own embodied radiance. From his mouths, at the end of the Kalpa, proceeds the venomed fire that, impersonated as Rudra, who is one with Balaráma, devours the three worlds.