Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 35

Sanskrit:

एवं च पार्षदौ विष्णो: पुत्रत्वं प्रापितौ दिते: ।हृदि स्थितेन हरिणा वैरभावेन तौ हतौ ॥ ३५ ॥

ITRANS:

evaṁ ca pārṣadau viṣṇoḥputratvaṁ prāpitau diteḥhṛdi sthitena hariṇāvaira-bhāvena tau hatau

Translation:

Thus the two associates of Lord Viṣṇu who had become Hiraṇyākṣa and Hiraṇyakaśipu, the sons of Diti, were both killed. By illusion they had thought that the Supreme Lord, who is situated in everyone’s heart, was their enemy.

Purport:

The discourse concerning Lord Nṛsiṁhadeva and Prahlāda Mahārāja began when Mahārāja Yudhiṣṭhira asked Nārada how Śiśupāla had merged into the body of Kṛṣṇa. Śiśupāla and Dantavakra were the same Hiraṇyākṣa and Hiraṇyakaśipu. Here Nārada Muni is relating how in three different births the associates of Lord Viṣṇu were killed by Lord Viṣṇu Himself. First they were the demons Hiraṇyākṣa and Hiraṇyakaśipu.