SB 6.12.3
kha apatat tad vicalad graholkavan
niriksya duspreksyam ajata-viklavah
vajrena vajri sata-parvanacchinad
bhujam ca tasyoraga-raja-bhogam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Flying in the sky, Vrtrasura’s trident resembled a brilliant meteor. Although the blazing weapon was difficult to look upon, King Indra, unafraid, cut it to pieces with his thunderbolt. Simultaneously, he cut off one of Vrtrasura’s arms, which was as thick as the body of Vasuki, the King of the serpents.