One verse

Srimad Bhagavatam 3.27.3

3.27.3

तेन संसारपदवीमवशोऽभ्येत्यनिर्वृत: । प्रासङ्गिकै: कर्मदोषै: सदसन्मिश्रयोनिषु ॥ ३ ॥

tena samsara-padavim avaso ’bhyety anirvrtah prasangikaih karma-dosaih sad-asan-misra-yonisu

tena
by this
samsara
of repeated birth and death
padavim
the path
avasah
helplessly
abhyeti
he undergoes
anirvrtah
discontented
prasangikaih
resulting from association with material nature
karma-dosaih
by faulty actions
sat
good
asat
bad
misra
mixed
yonisu
in different species of life.

The conditioned soul therefore transmigrates into different species of life, higher and lower, because of his association with the modes of material nature. Unless he is relieved of material activities, he has to accept this position because of his faulty work.