Shiva Purana
॥ सनत्कुमार उवाच ॥ तपस्तपति योऽरण्ये वन्यमूलफलाशनः ॥ योऽधीते ऋचमेकां हि फलं स्यात्तत्समं मुने ॥ १ ॥
Sanatkumāra said:— O sage, the fruit is the same whether one performs penance in a forest restricting his diet to roots and fruits there or studies a single Vedic verse.
english translation
॥ sanatkumAra uvAca ॥ tapastapati yo'raNye vanyamUlaphalAzanaH ॥ yo'dhIte RcamekAM hi phalaM syAttatsamaM mune ॥ 1 ॥
hk transliteration by Sanscript