Skanda Purana 7.20.240

7.20.240

viṣṇoḥ pāpmāprahāṇārthaṃ śaṃbhusavidhe devānāṃ prārthanā . mahādevena tatra girau śūlāropaṇena jaladhārāniḥsāraṇam . tajjale snapitasya viṣṇoḥ śarīrānmūrttāyāḥ pāpmāyā abhiniḥsaraṇam . viṣṇunā pāśupatavratavaraṇam, tuṣṭena hareṇa viṣṇave svaśarīrārdhapradānam . tannimittaṃ ca tasya viṣṇuśaṃkaratvam (harihararūpatvam) . trailokyarājyārthe punardevāsura- yuddham . mahādevasyājñayā paraśurāmeṇaikākinā yudhi sarveṣāṃ saiṃhikeyagaṇānāṃ hananam . dānavānāṃ palāyanam,- devairjāmadagnyāya varapradānam .

The plea of the gods in the presence of Śambhu for the removal of Viṣṇu's sin. The issuing forth of a stream of water by Mahādeva's implanting his trident there on the mountain. The emergence of sin in embodied form from the body of Viṣṇu, who was bathed in that water. Viṣṇu's taking up of the Pāśupata vow; the granting by Hara, who was pleased, of half of his own body to Viṣṇu; and through that cause, his state as Viṣṇu-Śaṃkara (having the form of Harihara). Another battle between the gods and the asuras for the sovereignty of the three worlds. The slaying of all the hosts of the sons of Siṃhikā in battle by Paraśurāma alone by command of Mahādeva. The flight of the dānavas; the granting of a boon to the descendant of Jamadagni by the gods.