Śrāddha-kalpa: Amarakantaka–Tīrtha-Māhātmya and Akṣaya Pitṛ-Tarpaṇa
गोकर्णे निहितं देवैर् नास्तिकानां निदर्शनम् / अब्राह्मणस्य सावित्रीं पठतस्तु प्रणश्यति
gokarṇe nihitaṃ devair nāstikānāṃ nidarśanam / abrāhmaṇasya sāvitrīṃ paṭhatastu praṇaśyati
In Gokarṇa the gods have set a warning sign for the faithless. A non-Brahmin who recites the Sāvitrī (Gāyatrī) comes to ruin.