One verse

Srimad Bhagavatam 12.12.59

12.12.59

य एतत् श्रावयेन्नित्यं यामक्षणमनन्यधी: । श्लोकमेकं तदर्धं वा पादं पादार्धमेव वा । श्रद्धावान् योऽनुश‍ृणुयात् पुनात्यात्मानमेव स: ॥ ५९ ॥

ya etat śrāvayen nityaṁ yāma-kṣaṇam ananya-dhīḥ ślokam ekaṁ tad-ardhaṁ vā pādaṁ pādārdham eva vā śraddhāvān yo ’nuśṛṇuyāt punāty ātmānam eva saḥ

yaḥ
who
etat
this
śrāvayet
makes others hear
nityam
always
yāma-kṣaṇam
every hour and every minute
ananya-dhīḥ
with undeviated attention
ślokam
verse
ekam
one
tat-ardham
half of that
vā
or
pādam
a single line
pāda-ardham
half a line
eva
indeed
vā
or
śraddhā-vān
with faith
yaḥ
who
anuśṛṇuyāt
hears from the proper source
punāti
purifies
ātmānam
his very self
eva
indeed
saḥ
he

One who with undeviating attention constantly recites this literature at every moment of every hour, as well as one who faithfully hears even one verse or half a verse or a single line or even half a line, certainly purifies his very self.