Srimad Bhagavatam Canto 07, Chapter 15, Text 15

SB 7.15.15

dharmartham api neheta
 yatrartham vadhano dhanam
anihanihamanasya
 mahaher iva vrttida
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Even if a man is poor, he should not endeavor to improve his economic condition just to maintain his body and soul together or to become a famous religionist. Just as a great python, although lying in one place, not endeavoring for its livelihood, gets the food it needs to maintain body and soul, one who is desireless also obtains his livelihood without endeavor.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Human life is simply meant for developing Krsna consciousness. One need not even try to earn a livelihood to maintain body and soul together. This is illustrated here by the example of the great python, which lies in one place, never going here and there to earn a livelihood to maintain itself, and yet is maintained by the grace of the Lord. As advised by Narada Muni (Bhag. 1.5.18), tasyaiva hetoh prayateta kovidah: one should simply endeavor to increase his Krsna consciousness. One should not desire to do anything else, even to earn his livelihood. There are many, many examples of this attitude. Madhavendra Puri, for instance, would never go to anyone to ask for food. Sukadeva Gosvami has also said, kasmad bhajanti kavayo dhana-durmadandhan. Why should one approach a person who is blind with wealth? Rather, one should depend on Krsna, and He will give everything. All the members of our Krsna consciousness movement, whether they be grhasthas or sannyasis, should try to spread the Krsna consciousness movement with determination, and Krsna will supply all necessities. The process of ajagara-vrtti, the means of livelihood of a python, is very much appreciated in this regard. Even though one may be very poor, he should simply try to advance in Krsna consciousness and not endeavor to earn his livelihood.
Srimad Bhagavatam Canto 07, Chapter 15, Text 14
Srimad Bhagavatam Canto 07, Chapter 15, Text 16