One verse

Srimad Bhagavatam 4.14.46

4.14.46

तस्य वंश्यास्तु नैषादा गिरिकाननगोचरा: । येनाहरज्जायमानो वेनकल्मषमुल्बणम् ॥ ४६ ॥

tasya vamsyas tu naisada giri-kanana-gocarah yenaharaj jayamano vena-kalmasam ulbanam

tasya
his (Nisada’s)
vamsyah
descendants
tu
then
naisadah
called Naisadas
giri-kanana
the hills and forests
gocarah
inhabiting
yena
because
aharat
he took upon himself
jayamanah
being born
vena
of King Vena
kalmasam
all kinds of sin
ulbanam
very fearful.

After his (Nisada’s) birth, he immediately took charge of all the resultant actions of King Vena’s sinful activities. As such, this Naisada class are always engaged in sinful activities like stealing, plundering and hunting. Consequently they are only allowed to live in the hills and forests.