Shivapurana 7.2.19.19.p18

Śivapurāṇa 7.2.19.19.p18

oṃ iti śrīśivamahāpurāṇe saptamyāṃ vāyavīyasaṃhitāyāmuttarakhaṃḍe sādhakasaṃskāramantramāhātmyaṃ nāmaikonaviṃśo 'dhyāyaḥ