Mbh 3.257.1

Vaisampayana continued, “Dwelling in the woods, O bull of the Bharata race, the high-souled Pandavas spent one and ten years in a miserable plight. And although deserving of happiness, those foremost of men, brooding over their circumstances, passed their days miserably, living on fruits and roots. And that royal sage, the mighty-armed Yudhishthira, reflecting that the extremity of misery that had befallen his brothers, was owing to his own fault, and remembering those sufferings that had arisen from his act of gambling, could not sleep peacefully. And he felt as if his heart had been pierced with a lance. And remembering the harsh words of the Suta’s son, the Pandava, repressing the venom of his wrath, passed his time in humble guise, sighing heavily. And Arjuna and both the twins and the illustrious Draupadi, and the mighty Bhima--he that was strongest of all men--experienced the most poignant pain in casting their eyes on Yudhishthira. And thinking that a short time only remained (of their exile), those bulls among men, influenced by rage and hope and by resorting to various exertions and endeavours, made their bodies assume almost different shapes.