One verse

Srimad Bhagavatam 3.2.3

3.2.3

स कथं सेवया तस्य कालेन जरसं गत: । पृष्टो वार्तां प्रतिब्रूयाद्भर्तु: पादावनुस्मरन् ॥ ३ ॥

sa katham sevaya tasya kalena jarasam gatah prsto vartam pratibruyad bhartuh padav anusmaran

sah
Uddhava
katham
how
sevaya
by such service
tasya
his
kalena
in course of time
jarasam
invalidity
gatah
undergone
prstah
asked for
vartam
message
pratibruyat
just to reply
bhartuh
of the Lord
padau
His lotus feet
anusmaran
remembering.

Uddhava thus served the Lord continually from childhood, and in his old age that attitude of service never slackened. As soon as he was asked about the message of the Lord, he at once remembered all about Him.