Narayana power increase

Then Nara and Narayana, for the pacification of Narayana weapon, began forcibly to drag Bhima and all his weapons. Thus dragged by them, Kunti's son, that mighty car-warrior, began to roar aloud. Thereupon, that terrible and invincible weapon of Drona's son began to increase (in might and energy).

Then Vasudeva, addressing Bhima, said, 'How is it, O son of Pandu, that though
forbidden by us, thou, O son of Kunti, dost not yet abstain from battle? If the Kurus could now be
vanquished in battle, then we, as also all these foremost of men, would certainly have continued to fight.
Behold, all the warriors of thy host have alighted from their cars. For this reason, O son of Kunti, do
thou also come down from thy car.' Having said these words, Krishna brought Bhima down from his car.
The latter, with eyes red as blood in rage, was sighing like a snake. When, however, he was dragged
down from his car and made to lay aside his weapons, the Narayana weapon, that scorcher of foes,
became pacified.'

Drona Parva Section CCI