17:25  

तदित्यनभिसन्धाय फलं यज्ञतपःक्रियाः ।
दानक्रियाश्च विविधाः क्रियन्ते मोक्षकाङ्क्षिभिः ॥१७- २५॥

tadityanabhisandhaaya phalaM yadnyatapaHkriyaaH ।

daanakriyaashcha wiwidhaaH kriyante mokShakaa~NkShibhiH ॥१७- २५॥

Source: Automatic ITRANS Transliteration

For disinterestedness in results, those "tat" sacrifice-, austerity-rituals,
And various donation-rituals are performed by those desiring liberation.

Source: Milind S. Pandit

Various types of sacrifice, charity, and austerity are performed by the seekers of nirvana by uttering "TAT" (or He is all) without seeking a reward.

Source: The Bhagavad-Gita: The Sacred Song

One should perform sacrifice, penance and charity with the word tat. The purpose of such transcendental activities is to get free from the material entanglement.

Source: Bhagavad Gita As It Is