Appearing as Nṛsiṁhadeva, the Supreme Personality of Godhead, Śrī Hari, killed Hiraṇyakaśipu. When the Lord delivered the planet earth, which had fallen in the Garbhodaka Ocean, Hiraṇyākṣa tried to hinder Him, and then the Lord, as Varāha, killed Hiraṇyākṣa.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
हिरण्यकशिपुः पुत्रं प्रह्लादं केशवप्रियम् । जिघांसुरकरोन्नाना यातना मृत्युहेतवे
hiraṇyakaśipuḥ putraṃ prahlādaṃ keśavapriyam | jighāṃsurakaronnānā yātanā mṛtyuhetave
SB 7.1.41