Phala Bhumir Vraja Bhumi -  Skanda Purana, Vaishnav Khand (2), Bhagwat Mahatmaya (6), Chapter (2) Verse (23)

Phala Bhumir Vraja Bhumi - Skanda Purana, Vaishnav Khand (2), Bhagwat Mahatmaya (6), Chapter (2) Verse (23)

Phalabhūmirvrajabhūmirdattā Tasmai Puraiva Sarahasyam.
Phalamiha Tirohitaṃ Sattadihedānīṃ Sa Uddhavo'lakṣyaḥ.

- Skanda Purana, Vaishnav Khand (2), Bhagwat Mahatmaya (6), Chapter (2) Verse (23) [2.6.2.23]

The land of Braj is the land of fruition (of penance), formerly given to Udhhava long ago. The fruit is hidden here, and so is Uddhava who stays here in hidden form.