SB 6.11.11
airavato vrtra-gadabhimrsto
vighurnito ’drih kulisahato yatha
apasarad bhinna-mukhah sahendro
muñcann asrk sapta-dhanur bhrsartah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Struck with the club by Vrtrasura like a mountain struck by a thunderbolt, the elephant Airavata, feeling great pain and spitting blood from its broken mouth, was pushed back fourteen yards. In great distress, the elephant fell, with Indra on its back.