Śrīmad-Bhāgavatam · Text 3.14.2
Who is speaking and story frame
विदुर उवाच
तेनैव तु मुनिश्रेष्ठ हरिणा यज्ञमूर्तिना ।
आदिदैत्यो हिरण्याक्षो हत इत्यनुशुश्रुम ॥ २ ॥
vidura uvāca
tenaiva tu muni-śreṣṭha
hariṇā yajña-mūrtinā
ādi-daityo hiraṇyākṣo
hata ity anuśuśruma
Śrī Vidura said: O chief amongst the great sages, I have heard by disciplic succession that Hiraṇyākṣa, the original demon, was slain by the same form of sacrifices, the Personality of Godhead [Lord Boar].
Read Śrīla Prabhupāda's purport on Vedabase.io