My Lord Nṛsiṁhadeva, please, therefore, cease Your anger now that my father, the great demon Hiraṇyakaśipu, has been killed. Since even saintly persons take pleasure in the killing of a scorpion or a snake, all the worlds have achieved great satisfaction because of the death of this demon. Now they are confident of their happiness, and they will always remember Your auspicious incarnation in order to be free from fear.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तद्यच्छ मन्युमसुरश्च हतस्त्वयाद्य मोदेत साधुरपि वृश्चिकसर्पहत्या । लोकाश्च निर्वृतिमिताः प्रतियन्ति सर्वे रूपं नृसिंह विभयाय जनाः स्मरन्ति
tadyaccha manyumasuraśca hatastvayādya modeta sādhurapi vṛścikasarpahatyā | lokāśca nirvṛtimitāḥ pratiyanti sarve rūpaṃ nṛsiṃha vibhayāya janāḥ smaranti
SB 7.9.14