SB 6.13.5
indra uvaca
stri-bhu-druma-jalair eno
visvarupa-vadhodbhavam
vibhaktam anugrhnadbhir
vrtra-hatyam kva marjmy aham
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
King Indra replied: When I killed Visvarupa, I received extensive sinful reactions, but I was favored by the women, land, trees and water, and therefore I was able to divide the sin among them. But now if I kill Vrtrasura, another brahmana, how shall I free myself from the sinful reactions?