Mbh 3.160.1

Vaisampayana said, “Hearing various sounds resounding in the caves of the mountain and not seeing Bhimasena, Kunti’s son, Ajatasatru and the twin sons of Madri and Dhaumya and Krishna and all the Brahmanas and the friends (of the Pandavas), were filled with anxiety. Thereupon, entrusting Draupadi to the charge of Arshtishena and equipped in their arms, those valiant and mighty charioteers together began to ascend the summit of the mountain. And having reached the summit, as those repressors of foes and mighty bowmen and powerful charioteers they were looking about, saw Bhima and those huge Rakshasas of mighty strength and courage weltering in a state of unconsciousness having been struck down by Bhima. And holding his mace and sword and bow, that mighty-armed one looked like Maghavan, after he had slain the danava hosts. Then on seeing their brother, the Pandavas, who had attained excellent state, embraced him and sat down there. And with those mighty bowmen, that summit looked grand like heaven graced by those foremost of celestials, the highly fortunate Lokapalas. And seeing the abode of Kuvera and the Rakshasas, lying slain on the ground, the king addressed his brother who was seated, saying, ‘Either it be through rashness, or through ignorance, thou hast, O Bhima, committed a sinful act. O hero, as thou art leading the life of an anchorite, this slaughter without cause is unlike thee. Acts, it is asserted by those versed in duties, as are calculated to displease a monarch, ought not to be committed. But thou hast, O Bhimasena, committed a deed which will offend even the gods. He that disregarding profit and duty, turneth his thoughts to sin must, O Partha, reap the fruit of his sinful actions. However, if thou seekest my good, never again commit such a deed.’”