SB 10.72.43

ekam pādaṁ padākramya
 dorbhyām anyaṁ pragṛhya saḥ
gudataḥ pāṭayām āsa
 śākham iva mahā-gajaḥ
Synonyms: 
ekam — one; pādam — leg; padā — with his foot; ākramya — standing on top of; dorbhyām — with his two hands; anyam — the other; pragṛhya — taking hold of; saḥ — he; gudataḥ — beginning from the anus; pāṭayām āsa — tore him asunder; śākhām — a tree branch; iva — as; mahā — great; gajaḥ — an elephant.
Translation: 
Bhīma pressed down on one leg with his foot while grabbing Jarāsandha’s other leg in his hands, and just as a great elephant might break the branch of a tree, Bhīma tore Jarāsandha apart from the anus upward.