Srimad Bhagavatam Canto 04, Chapter 21, Text 47

SB 4.21.47

hiranyakasipus capi
 bhagavan-nindaya tamah
viviksur atyagat sunoh
 prahladasyanubhavatah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
 
Similarly, Hiranyakasipu, who by dint of his sinful activities always defied the supremacy of the Supreme Personality of Godhead, entered into the darkest region of hellish life; but by the grace of his great son, Prahlada Maharaja, he also was delivered and went back home, back to Godhead.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
 
When Prahlada Maharaja was offered benediction by Nrsimhadeva, due to his great devotion and tolerance he refused to accept any benediction from the Lord, thinking that such acceptance was not befitting a sincere devotee. The rendering of service to the Supreme Personality of Godhead in expectation of a good reward is deprecated by Prahlada Maharaja as mercantile business. Because Prahlada Maharaja was a Vaisnava, he did not ask a benediction for his personal self but was very affectionate toward his father. Although his father tortured him and would have killed him had he himself not been killed by the Supreme Personality of Godhead, Prahlada Maharaja begged pardon for him from the Lord. This favor was immediately granted by the Lord, and Hiranyakasipu was delivered from the darkest region of hellish life, and he returned back home, back to Godhead, by the grace of his son. Prahlada Maharaja is the topmost example of a Vaisnava, who is always compassionate toward sinful persons suffering a hellish life within this material world. Krsna is therefore known as para-duhkha-duhkhi krpambudhih, or one who is compassionate toward others’ suffering and who is an ocean of mercy. Like Prahlada Maharaja, all pure devotees of the Lord come to this material world with full compassion to deliver the sinful. They undergo all kinds of tribulations, suffering them with tolerance, because that is another qualification of a Vaisnava, who tries to deliver all sinful persons from the hellish conditions of material existence. Vaisnavas are therefore offered the following prayer:
 
vañcha-kalpatarubhyas ca
 krpa-sindhubhya eva ca
patitanam pavanebhyo
 vaisnavebhyo namo namah
 
The chief concern of a Vaisnava is to deliver the fallen souls.
Srimad Bhagavatam Canto 04, Chapter 21, Text 46
Srimad Bhagavatam Canto 04, Chapter 21, Text 48