SB 7.5.45

eṣa me bahv-asādhūkto
 vadhopāyāś ca nirmitāḥ
tais tair drohair asad-dharmair
 muktaḥ svenaiva tejasā
Synonyms: 
eṣaḥ — this; me — of me; bahu — many; asādhu-uktaḥ — ill names; vadha-upāyāḥ — many varieties of means to kill him; ca — and; nirmitāḥ — devised; taiḥ — by those; taiḥ — by those; drohaiḥ — treacheries; asat-dharmaiḥ — abominable actions; muktaḥ — released; svena — his own; eva — indeed; tejasā — by prowess.
Translation: 
Hiraṇyakaśipu thought: I have used many ill names in chastising this boy Prahlāda and have devised many means of killing him, but despite all my endeavors, he could not be killed. Indeed, he saved himself by his own powers, without being affected in the least by these treacheries and abominable actions.