SB 11.4.19
samstunvato nipatitan sramanan rsims ca
sakram ca vrtra-vadhatas tamasi pravistam
deva-striyo ’sura-grhe pihita anatha
jaghne ’surendram abhayaya satam nrsimhe
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The Lord also delivered the tiny ascetic sages called the Valakhilyas when they fell into the water in a cow’s hoofprint and Indra was laughing at them. The Lord then saved Indra when Indra was covered by darkness due to the sinful reaction for killing Vrtrasura. When the wives of the demigods were trapped in the palace of the demons without any shelter, the Lord saved them. In His incarnation as Nrsimha, the Lord killed Hiranyakasipu, the king of demons, to free the saintly devotees from fear.