One verse

Srimad Bhagavatam 10.87.3

10.87.3

सैषा ह्युपनिषद् ब्राह्मी पूर्वेशां पूर्वजैर्धृता । श्रद्धया धारयेद् यस्तां क्षेमं गच्छेदकिञ्चन: ॥ ३ ॥

saiṣā hy upaniṣad brāhmī pūrveśāṁ pūrva-jair dhṛtā śrraddhayā dhārayed yas tāṁ kṣemaṁ gacched akiñcanaḥ

sā eṣā
this same
hi
indeed
upaniṣat
Upaniṣad, confidential spiritual doctrine
brāhmī
related to the Absolute Truth
pūrveṣām
of our predecessors (such as Nārada)
pūrva-jaiḥ
by the predecessors (such as Sanaka)
dhṛta
meditated upon
śraddhayā
with faith
dhārayet
meditates
yaḥ
whoever
tām
upon it
kṣemam
ultimate success
gacchet
will attain
akiñcanaḥ
free from material connection

Those who came before even our ancient predecessors meditated upon this same confidential knowledge of the Absolute Truth. Indeed, anyone who faithfully concentrates on this knowledge will become free from material attachments and attain the final goal of life.