SB 7.1.42

hiraṇyakaśipuḥ putraṁ
 prahlādaṁ keśava-priyam
jighāṁsur akaron nānā
 yātanā mṛtyu-hetave
Word for word: 
hiraṇyakaśipuḥ — Hiraṇyakaśipu; putram — son; prahlādam — Prahlāda Mahārāja; keśava-priyam — the beloved devotee of Keśava; jighāṁsuḥ — desirous of killing; akarot — enacted; nānā — various; yātanāḥ — tortures; mṛtyu — death; hetave — to cause.
Translation: 
Desiring to kill his son Prahlāda, who was a great devotee of Lord Viṣṇu, Hiraṇyakaśipu tortured him in many ways.