Matsyapurana 69.14

69.14

yasya tīkṣṇo vṛko nāma jaṭhare havyavāhanaḥ
mayā dattaḥ sa dharmātmā tena cāsau vṛkodaraḥ //

O Brahmâ ! after that Bhîmasena will follow the rituals dictated by Lord Kriṣṇa and will promulgate it in the world.—13. Bhîmasena is called Vrikodara, on account of his having Vrika or wolf-like fire given by me in his stomach. His hunger will never be appeased.—14.