Shivapurana 7.2.16.41

Śivapurāṇa (complete text) 7.2.16.41

darbhāgraiḥ saṃspṛśaṃstaṃ ca vidyayātmānamāviśet |
namaskṛtya mahādevaṃ nāḍīsandhānamācaret ||