Mahabharata 3.154.1

3.154.1

vaiśaṃpāyana uvāca |
tatastānpariviśvastānvasatastatra pāṇḍavān |
gateṣu teṣu rakṣaḥsu bhīmasenātmaje'pi ca || 1 ||

Vaisampayana continued, "Thus dwelling with the Brahmanas in that best of mountains, in expectation of Arjuna's return, when the Pandavas had grown confident and when all those Rakshasas together with Bhima's son had departed, one day while Bhimasena was away, a Rakshasa all of a sudden carried off Yudhishthira the just and the twins and Krishna. That Rakshasa (in the guise of a Brahmana) had constantly remained in the company of the Pandavas, alleging that he was a high-class Brahmana, skilled in counsel, and versed in all the Sastras. His object was to possess himself of the bows, the quivers and the other material implements belonging to the Pandavas; and he had been watching for an opportunity of ravishing Draupadi. And that wicked and sinful one was named Jatasura. And, [paragraph continues] O king of kings, Pandu's son (Yudhishthira) had been supporting him, but knew not that wretch like unto a fire covered with ashes.