Mbh 9.30.4d

Indeed, within those waters lay, O lord, that king, armed with his mace, who, O ruler of men, could not be vanquished by any man! Staying within the waters of that lake, king Duryodhana heard that tumultuous noise (of the Pandava army) which resembled the very roar of the clouds. Yudhishthira then, O king, with his brothers repaired to that lake from desire of slaying Duryodhana. Raising a thick dust, the son of Pandu caused the earth to tremble with the sound of his car-wheels and the loud blare of his conch. Hearing the noise made by the army of Yudhishthira, those great car-warriors, Kritavarma and Kripa and the son of Drona, said these words unto the Kuru king, "Filled with joy and longing for victory, the Pandavas are coming hither! We will, therefore, leave this place. Let it be known to thee!" Hearing those words of these heroes endued with great activity, he answered them, saying, "So be it," and remained (as before) within the waters, having, O lord, solidified them by his powers of illusion. Those car-warriors headed by Kripa, filled with grief, took leave of the king, O monarch, and went away to a place far removed from that spot. Having proceeded far, they beheld a banyan, O sire, under whose shade they stopped, greatly tired, and exceedingly anxious about the king and indulging in such thoughts as these, "The mighty son of Dhritarashtra, having solidified the waters of the lake, lay stretched at the bottom. The Pandavas have reached that spot, from desire of battle. How will the battle take place? What will become of the king?" Thinking of these things, O king, those heroes, Kripa and the others, liberated their horses from their cars and prepared to rest there for some time.'"