One verse

Srimad Bhagavatam 7.10.22

7.10.22

कुरु त्वं प्रेतकृत्यानि पितु: पूतस्य सर्वश: । मदङ्गस्पर्शनेनाङ्ग लोकान्यास्यति सुप्रजा: ॥ २२ ॥

kuru tvam preta-krtyani pituh putasya sarvasah mad-anga-sparsanenanga lokan yasyati suprajah

kuru
perform
tvam
you
preta-krtyani
the ritualistic ceremony performed after death
pituh
of your father
putasya
already purified
sarvasah
in all respects
mat-anga
My body
sparsanena
by touching
anga
My dear child
lokan
to planes
yasyati
he will be elevated
su-prajah
to become a devotee-citizen.

My dear child, your father has already been purified just by the touch of My body at the time of his death. Nonetheless, the duty of a son is to perform the sraddha ritualistic ceremony after his father’s death so that his father may be promoted to a planeary system where he may become a good citizen and devotee.