One verse

Srimad Bhagavatam 11.27.53

11.27.53

मामेव नैरपेक्ष्येण भक्तियोगेन विन्दति । भक्तियोगं स लभत एवं य: पूजयेत माम् ॥ ५३ ॥

mām eva nairapekṣyeṇa bhakti-yogena vindati bhakti-yogaṁ sa labhata evaṁ yaḥ pūjayeta mām

mām
Me
eva
indeed
nairapekṣyeṇa
by being free from motivation
bhakti-yogena
by the performance of devotional service
vindati
achieves
bhakti-yogam
devotional service
saḥ
he
labhate
receives
evam
thus
yaḥ
whom
pūjayeta
worships
mām
Me

But one who simply engages in devotional service with no consideration of fruitive results attains Me. Thus whoever worships Me according to the process I have described will ultimately attain pure devotional service unto Me.