Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/22/14

ततश्च पतितः कर्णान्मणिश्च पुरतः प्रभो ।। तद्बभूव महत्तीर्थं नामतो मणिकर्णिका।। १४।।

sanskrit

Then a jewel fell in front from the ear of the lord. It became the great holy centre named Maṇikarṇikā.

english translation

tatazca patitaH karNAnmaNizca purataH prabho || tadbabhUva mahattIrthaM nAmato maNikarNikA|| 14||

hk transliteration by Sanscript