One verse

Srimad Bhagavatam 7.11.17

7.11.17

जघन्यो नोत्तमां वृत्तिमनापदि भजेन्नर: । ऋते राजन्यमापत्सु सर्वेषामपि सर्वश: ॥ १७ ॥

jaghanyo nottamam vrttim anapadi bhajen narah rte rajanyam apatsu sarvesam api sarvasah

jaghanyah
low (person)
na
not
uttamam
high
vrttim
means of livelihood
anapadi
when there is no social upheaval
bhajet
may accept
narah
a man
rte
except
rajanyam
the profession of the ksatriyas
apatsu
at times of emergency
sarvesam
of everyone in every status of life
api
certainly
sarvasah
all professions or occupational duties.

Except in a time of emergency, lower persons should not accept the occupational duties of those who are higher. When there is such an emergency, of course, everyone but the ksatriya may accept the means of livelihood of others.