Shiva Purana

siva.sh/siva-purana/uma-samhita/18/22

लक्षयोजनविस्तारस्समस्तपरिमण्डलः ।। जम्बूद्वीपो मया ख्यातः क्षारोदधिसुसंवृतः ।। २२।।

sanskrit

This Jambūdvīpa extends to a hundred thousand Yojanas including all its internal zones. It is well surrounded by the salt ocean.

english translation

lakSayojanavistArassamastaparimaNDalaH || jambUdvIpo mayA khyAtaH kSArodadhisusaMvRtaH || 22||

hk transliteration by Sanscript