Śrāddha-kalpa: Amarakantaka–Tīrtha-Māhātmya and Akṣaya Pitṛ-Tarpaṇa
नद्यास्तस्याश्च ताम्रायास्तूह्यमाना महोदधौ / शङ्खा भवन्ति शुक्त्यश्च जायते यासु मौक्तिकम्
nadyāstasyāśca tāmrāyāstūhyamānā mahodadhau / śaṅkhā bhavanti śuktyaśca jāyate yāsu mauktikam
As that Tamra river pours into the great ocean, conch-shells and pearl-oysters arise, within which pearls are born.