Matsyapurana 47.100

47.100

tayā 'bhibhūtau tau devāv indrāviṣṇū babhūvatuḥ
kathaṃ mucyeva sahitau viṣṇurindram abhāṣata //

At that, both Indra and Viṣṇu were overcome with fear and began to contrive some means of escape. Viṣṇu said to Indra:—“How shall we escape from her?” Indra replied:—“Lord! kill her before she consumes me. I am solely protected by you, destroy her soon without delay.” Viṣṇu thought over the great sin of killing a woman, but, in spite of that, he took up his Sudarśana Chakra to free Himself from that impending calamity.—101-103.