Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 23
Sanskrit:
मृणालगौरायतशेषभोग-पर्यङ्क एकं पुरुषं शयानम् ।फणातपत्रायुतमूर्धरत्न-द्युभिर्हतध्वान्तयुगान्ततोये ॥ २३ ॥
ITRANS:
mṛṇāla-gaurāyata-śeṣa-bhoga-paryaṅka ekaṁ puruṣaṁ śayānamphaṇātapatrāyuta-mūrdha-ratna-dyubhir hata-dhvānta-yugānta-toye
Translation:
Brahmā could see that on the water there was a gigantic lotuslike white bedstead, the body of Śeṣa-nāga, on which the Personality of Godhead was lying alone. The whole atmosphere was illuminated by the rays of the jewels bedecking the hood of Śeṣa-nāga, and that illumination dissipated all the darkness of those regions.