There, in the tract of land known as Uttarakuru-varsa, mother earth and all the other inhabitants worship Him with unfailing devotional service by repeatedly chanting the following Upanisad mantra

Expressions researched:
"There, in the tract of land known as Uttarakuru-varsa, mother earth and all the other inhabitants worship Him with unfailing devotional service by repeatedly chanting the following Upanisad mantra"

Srimad-Bhagavatam

SB Canto 5

There, in the tract of land known as Uttarakuru-varsa, mother earth and all the other inhabitants worship Him with unfailing devotional service by repeatedly chanting the following Upanisad mantra.

SB 5.18.34, Translation

Śukadeva Gosvāmī said: Dear King, the Supreme Lord in His boar incarnation, who accepts all sacrificial offerings, lives in the northern part of Jambūdvīpa. There, in the tract of land known as Uttarakuru-varṣa, mother earth and all the other inhabitants worship Him with unfailing devotional service by repeatedly chanting the following Upaniṣad mantra.