Bhima replied, “He is even my brother, excellent with every perfection, and endued with intelligence and strength both of mind and body. And he is the illustrious chief of monkeys, renowned in the Ramayana. And for Rama’s queen, that king of the monkeys even with one leap crossed the ocean extending over a hundred yojanas. That mighty one is my brother. I am equal unto him in energy, strength and prowess and also in fight. And able am I to punish thee. So arise. Either give me passage or witness my prowess to-day. If thou do not listen to my bidding, I shall send thee to the abode of Yama.”

In plain words: Bhima says Hanuman is his brother, famous in the Ramayana for leaping a vast ocean to find Rama's wife Sita. Bhima boasts that he is just as strong. He threatens to send the monkey to Yama, the god of death, if he does not move.