Mbh 1.128.7a

“On arriving at the place, the princes dismissed their attendants, and surveying the beauty of the gardens and the groves, entered the palace, like lions entering their mountain caves. On entering they saw that the architects had handsomely plastered the walls and the ceilings and that painters had painted them beautifully. The windows looked very graceful, and the artificial fountains were splendid. Here and there were tanks of pellucid water in which bloomed forests of lotuses. The banks were decked with various flowers whose fragrance filled the atmosphere. The Kauravas and the Pandavas sat down and began to enjoy the things provided for them. They became engaged in play and began to exchange morsels of food with one another. Meanwhile the wicked Duryodhana had mixed a powerful poison with a quantity of food, with the object of making away with Bhima. That wicked youth who had nectar in his tongue and a razor in his heart, rose at length, and in a friendly way fed Bhima largely with that poisoned food, and thinking himself lucky in having compassed his end, was exceedingly glad at heart. Then the sons of Dhritarashtra and Pandu together became cheerfully engaged in sporting in the water. Their sport having been finished, they dressed themselves in white habiliments, and decked themselves with various ornaments. Fatigued with play, they felt inclined in the evening to rest in the pleasurehouse belonging to the garden. Having made the other youths take exercise in the waters, the powerful second Pandava was excessively fatigued. So that on rising from the water, he lay down on the ground. He was weary and under the influence of the poison. And the cool air served to spread the poison over all his frame, so that he lost his senses at once. Seeing this Duryodhana bound him with chords of shrubs, and threw him into the water. The insensible son of Pandu sank down till he reached the Naga kingdom.