One verse

Srimad Bhagavatam 10.23.26

10.23.26

नन्वद्धा मयि कुर्वन्ति कुशला: स्वार्थदर्शिन: । अहैतुक्यव्यवहितां भक्तिमात्मप्रिये यथा ॥ २६ ॥

nanv addhā mayi kurvanti kuśalāḥ svārtha-darśinaḥ ahaituky avyavahitāṁ bhaktim ātma-priye yathā

nanu
certainly
addhā
directly
mayi
unto Me
kurvanti
they perform
kuśalāḥ
those who are expert
sva-artha
their own true benefit
darśinaḥ
who perceive
ahaitukī
unmotivated
avyavahitām
uninterrupted
bhaktim
devotional service
ātma
to the soul
priye
who am most dear
yathā
properly

Certainly expert personalities, who can see their own true interest, render unmotivated and uninterrupted devotional service directly unto Me, for I am most dear to the soul.