One verse

Srimad Bhagavatam 4.2.26

4.2.26

सर्वभक्षा द्विजा वृत्त्यै धृतविद्यातपोव्रता: । वित्तदेहेन्द्रियारामा याचका विचरन्त्विह ॥ २६ ॥

sarva-bhaksa dvija vrttyai dhrta-vidya-tapo-vratah vitta-dehendriyarama yacaka vicarantv iha

sarva-bhaksah
eating everything
dvijah
the brahmanas
vrttyai
for maintaining the body
dhrta-vidya
having taken to education
tapah
austerity
vratah
and vows
vitta
money
deha
the body
indriya
the senses
aramah
the satisfaction
yacakah
as beggars
vicarantu
let them wander
iha
here.

These brahmanas take to education, austerity and vows only for the purpose of maintaining the body. They shall be devoid of discrimination between what to eat and what not to eat. They will acquire money, begging from door to door, simply for the satisfaction of the body.