Śrīmad-Bhāgavatam
Canto 10 Chapter 10 Text 15

daridro nirahaṁ-stambho
muktaḥ sarva-madair iha
kṛcchraṁ yadṛcchayāpnoti
tad dhi tasya paraṁ tapaḥ

TRANSLATION
A poverty-stricken man must automatically undergo austerities and penances because he does not have the wealth to possess anything. Thus his false prestige is vanquished. Always in need of food, shelter and clothing, he must be satisfied with what is obtained by the mercy of providence. Undergoing such compulsory austerities is good for him because this purifies him and completely frees him from false ego.