Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 42
Sanskrit:
हिरण्यकशिपु: पुत्रं प्रह्लादं केशवप्रियम् ।जिघांसुरकरोन्नाना यातना मृत्युहेतवे ॥ ४२ ॥
ITRANS:
hiraṇyakaśipuḥ putraṁprahlādaṁ keśava-priyamjighāṁsur akaron nānāyātanā mṛtyu-hetave
Translation:
Desiring to kill his son Prahlāda, who was a great devotee of Lord Viṣṇu, Hiraṇyakaśipu tortured him in many ways.