Srimad Bhagvata Mahapurana: Book 3: Chapter 19: Verses 32-38
I have narrated to you, as I was told (by my preceptor), O good friend, the exploits of Sri Had, who came down to the material plane (in the form of the divine Boar), and how that Hiranyaksa of mighty valour was knocked down by Him like a plaything in that great encounter. Suta continued : Hearing the narrative of the Lord as it was told by the sage Maitreya (son of Kusaru), Vidura, who was a great devotee of the Lord, derived supreme delight, O holy sage. One rejoices to hear the life-account even of virtuous souls of sacred renown and extensive fame; there will be no limit, then, to one's joy on hearing the story of the Lord who bears the mark of Srivatsa. The Lord quickly delivered from a difficult situation the lordly elephant who, when seized by an alligator, fixed his mind on His lotus-feet in the midst of his female companions, who all shrieked (in distress). What grateful soul is there, who would not devote oneself to such a master, who can be easily pleased by guileless men resorting exclusively to Him for protection, though the unrighteous find it difficult to propitiate Him. He, O holy Brahmanas, is speedily and completely absolved even from the sin attaching to the murder of a Brahmana, who listens to, sings or even applauds the story of the most wonderful pastime, viz., the destruction of Hiranyaksa at the hands of the Lord, who assumed the form of a boar for the sake of rescuing the earth. This most sacred narrative confers extraordinary merit, wealth, fame, longevity and all the objects of one's desire. On the field of battle it promotes the strength of one's vital organs and organs of action. Those who listen to it at the last moment of their life find their asylum in Lord Narayana, O dear Saunaka !
Thus ends the nineteenth discourse entitled the "Death of Hiranyaksa" in Book Three of the great and glorious Bhagavata-Purana, otherwise known as the Paramahamsa-Samhita.