Upanishads 222.9

Upaniṣads 222.9

sa yathā śaṅkhasya dhmāyamānasya na bāhyāñchabdāñchaknuyādgrahaṇāya śaṅkhasya tu grahaṇena śaṅkhadhmasya vā
śabdo gṛhītaḥ