Mbh 15.27.1a

"Vaisampayana said, 'They passed that night which was characterised by auspicious constellations even thus, O king, in that retreat of righteous ascetics. The conversation that occurred was characterised by many reflections on morality and wealth. Consisting of delightful and sweet words, it was graced with diverse citations from the Srutis. The Pandavas, O king, leaving costly beds, laid themselves down, near their mother, on the bare ground. Indeed, those heroes passed that night, having eaten the food which was the food of the high-souled king Dhritarashtra. After the night had passed away, king Yudhishthira, having gone through his morning acts, proceeded to survey that retreat in the company of his brothers. With the ladies of his household, the servants, and his priest, the king roved about the retreat in all directions, as he pleased, at the command of Dhritarashtra. He beheld many sacrificial altars with sacred fires blazing on them and with many ascetics seated on them, that had performed their oblations and poured libations in honour of the deities. Those altars were overspread with fruits and roots of the forest, and with heaps of flowers. The smoke of clarified butter curled upwards from them. They were graced, besides, with many ascetics possessed of bodies that looked like the embodied Vedas and with many that belonged to the lay brotherhood. Herds of deer were grazing, or resting here and there, freed from every fear. Innumerable birds also were there, engaged in uttering their melodious notes, O king. The whole forest seemed to resound with the notes of peacocks and Datyuhas and Kokilas and the sweet songs of other warblers.[43] Some spots echoed with the chant of Vedic hymns recited by learned Brahmanas. Some were adorned with large heaps of fruits and roots gathered from the wilderness.