Skanda Purana 7.20.342

7.20.342

parvatapakṣacchedopākhyānam- piturvadhamanusmarataḥ prahlādasya vairaniryātanecchayā tapaścaraṇam . brahmaṇaḥ sakāśādaja- yyatvādivaralābhaḥ . prahlādahimavatsaṃvādaḥ . prahlādena devānāṃ vināśāya himavatsakāśe sāhāyyaprārthanam . prahlādavākyāt svaimutpatadbhiḥ parvatairdeśānāmupamardanam . tad dṛṣṭvā kruddhena śakreṇa lokadharmarakṣārthaṃ parvatānāṃ pakṣacchedanam .. prahlādasya viṣṇunā saha vigrahaḥ . prahlādasya pravrajyā . āsureḥ śiṣyatāṃ gatvā pañcaśikhanāmnā khyātiṃ gatasya prahlādasya siddhabhāvena paramapadaprāptiḥ . parvatapakṣacchedopākhyānopasaṃhāraḥ .

The story of the clipping of the mountains' wings: Prahlāda, remembering the slaying of his father, performs austerities desiring to take revenge; obtaining boons such as invincibility from Brahmā; dialogue between Prahlāda and Himavat; Prahlāda asking Himavat for assistance in destroying the gods; at Prahlāda's command, mountains flying up on their own and crushing the realms; seeing that, enraged Śakra clips the mountains' wings to protect the order of the world; Prahlāda's conflict with Viṣṇu; Prahlāda's renunciation; Prahlāda becoming a disciple of Āsuri, becoming celebrated by the name Pañcaśikha, and attaining the supreme abode as a perfected being; conclusion of the story of the clipping of the mountains' wings.