Mbh 1.165.4b

Then the Rakshasa, saying that he was none else than Vaka, sprang upon the Pandava and seized the mighty Bhima with his arms. That mighty hero also clasping with his own strong arms the strong-armed Rakshasa, and exerting himself actively, began to drag him violently. Dragged by Bhima and dragging Bhima also, the cannibal was overcome with great fatigue. The earth began to tremble in consequence of the strength they both exerted, and large trees that stood there broke in pieces. Then Bhima, beholding the cannibal overcome with fatigue, pressed him down on the earth with his knees and began to strike him with great force. Then placing one knee on the middle of the Rakshasa’s back, Bhima seized his neck with his right hand and the cloth on his waist with his left, and bent him double with great force. The cannibal then roared frightfully. And, O monarch, he also began to vomit blood while he was being thus broken on Bhima’s knee.’”