One verse

Srimad Bhagavatam 6.2.16

6.2.16

गुरूणां च लघूनां च गुरूणि च लघूनि च । प्रायश्चित्तानि पापानां ज्ञात्वोक्तानि महर्षिभि: ॥ १६ ॥

gurunam ca laghunam ca guruni ca laghuni ca prayascittani papanam jnatvoktani maharsibhih

gurunam
heavy
ca
and
laghunam
light
ca
also
guruni
heavy
ca
and
laghuni
light
ca
also
prayascittani
the processes of atonement
papanam
of sinful activities
jnatva
knowing perfectly well
uktani
have been prescribed
maha-rsibhih
by great sages.

Authorities who are learned scholars and sages have carefully ascertained that one should atone for the heaviest sins by undergoing a heavy process of atonement and one should atone for lighter sins by undergoing lighter atonement. Chanting the Hare Krsna mantra, however, vanquishes all the effects of sinful activities, regardless of whether heavy or light.