The Great Epic of the Bhārata dynasty 1.52.2

1.52.2

sūta uvāca |
sahasrāṇi bahūnyasminprayutānyarbudāni ca |
na śakyaṃ parisaṃkhyātuṃ bahutvādvedavittama || 2 ||

"Sauti replied, 'Many thousands and tens of thousands and billions of snakes fell into the fire. O most excellent Brahmana, so great is the number that I am unable to count them all. So far, however, as I remember, hear the names I mention of the principal snakes cast into the fire. Hear first the names of the principal ones of Vasuki's race alone, of colour blue, red and white of terrible form and huge body and deadly poison. Helpless and miserable and afflicted with their mother's curse, they fell into the sacrificial fire like libations of butter.