SB 8.21.15
tan abhidravato drstva
ditijanikapan nrpa
prahasyanucara visnoh
pratyasedhann udayudhah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O King, when the associates of Lord Visnu saw the soldiers of the demons coming forward in violence, they smiled. Taking up their weapons, they forbade the demons to continue their attempt.