Garudapurana 1.69.22

1.69.22

tacchuktimatsu sthitimāpa bījamāsanpurāpyanyabhavāni yāni /
yasminpradeśe 'mbunidhau papāta sucārumuktāmaṇiratnabījam /
tasminpayastoyadharāvakīrṇaṃ śuktau sthitaṃ mauktikatāmavāpa //

found its place in oyster-shells, which were originally of other origins. / In whatever region of the ocean that seed of the very lovely pearl-gem fell, / in that place, the water shed by rainclouds and residing in the oyster-shell attained the state of pearls.