One verse

Srimad Bhagavatam 10.80.34

10.80.34

नाहमिज्याप्रजातिभ्यां तपसोपशमेन वा । तुष्येयं सर्वभूतात्मा गुरुशुश्रूषया यथा ॥ ३४ ॥

nāham ijyā-prajātibhyāṁ tapasopaśamena vā tuṣyeyaṁ sarva-bhūtātmā guru-śuśrūṣayā yathā

na
not
aham
I
ijyā
by ritual worship
prajātibhyām
the higher birth of brāhmaṇa initiation
tapasā
by austerity
upaśamena
by self-control
vā
or
tuṣyeyam
can be satisfied
sarva
of all
bhūta
beings
ātmā
the Soul
guru
to one’s spiritual master
śuśrūṣayā
by faithful service
yathā
as

I, the Soul of all beings, am not as satisfied by ritual worship, brahminical initiation, penances or self-discipline as I am by faithful service rendered to one’s spiritual master.