Brihad Bhagavatamrta
Part 1 Chapter 5 Text 118

na janimah kada kutra
punar esa vrajed iti
uddhavo nityam abhyarne
nivasan sevate prabhum

TRANSLATION
We cannot be sure when He might go somewhere else. But Uddhava is always by His side, serving Lorda Krsna, his master, and residing with Him.