Bhagavad Gita 4.28
द्रव्ययज्ञास्तपोयज्ञा योगयज्ञास्तथापरे। स्वाध्यायज्ञानयज्ञाश्च यतयः संशितव्रताः।।4.28।।
dravyayajñāstapoyajñā yogayajñāstathāpare| svādhyāyajñānayajñāśca yatayaḥ saṃśitavratāḥ||4.28||
dravyayajnastapoyajna yogayajnastathapare svadhyayajnanayajnashca yatayah samshitavratah4.28
Meaning
Some offer their wealth as sacrifice, some offer austerity, some offer yoga practice, while others of strict vows offer study of scriptures and knowledge as their sacrifice.
कुछ (साधक) द्रव्ययज्ञ, तपयज्ञ और योगयज्ञ करने वाले होते हैं; और दूसरे कठिन व्रत करने वाले स्वाध्याय और ज्ञानयज्ञ करने वाले योगीजन होते हैं।
This is verse 28 of 42 in Chapter 4 (Jnana Karma Sanyasa Yoga) of the Bhagavad Gita.