Shout

Thus addressed, Hanuman said unto Bhimasena, 'From fraternal feeling and affection, I will do
good unto thee, by diving into the army of thy foes copiously furnished with arrows and javelins. And, O
highly powerful one, O hero, when thou shall give leonine roars, then shall I with my own, add force to
shouts. Remaining on the flagstaff of Arjuna's car will I emit fierce shouts that will damp the energy of
thy foes. Thereby ye will slay them easily.' Having said this unto Pandu's son, and also pointed him out
the way. Hanuman vanished at that spot.

Vana Parva: Section 150