Text 17

श्रद्धया परया तप्तं तपस्तत्त्रिविधं नरैः ।
अफलाकाङ्क्षिभिर्युक्तैः सात्त्विकं परिचक्षते ॥१७॥

śraddhayā parayā taptaḿ
tapas tat tri-vidhaḿ naraiḥ
aphalākāńkṣibhir yuktaiḥ
sāttvikaḿ paricakṣate

Translation:

This threefold austerity, performed with transcendental faith by men not expecting material benefits but engaged only for the sake of the Supreme, is called austerity in goodness.