One verse

Srimad Bhagavatam 10.66.43

10.66.43

य एनं श्रावयेन्मर्त्य उत्तम:श्लोकविक्रमम् । समाहितो वा श‍ृणुयात् सर्वपापै: प्रमुच्यते ॥ ४३ ॥

ya enaṁ śrāvayen martya uttamaḥ-śloka-vikramam samāhito vā śṛṇuyāt sarva-pāpaiḥ pramucyate

yaḥ
one who
enam
this
śrāvayet
causes others to hear
martyaḥ
a mortal human
uttamaḥ-śloka
of Lord Kṛṣṇa, who is praised in the best transcendental verses
vikramam
the heroic pastime
samāhitaḥ
with concentration
vā
or
śṛṇuyāt
hears
sarva
from all
pāpaiḥ
sins
pramucyate
becomes released

Any mortal who recounts this heroic pastime of Lord Uttamaḥ-śloka’s, or who simply hears it attentively, will become freed from all sins.