3:17  

यस्त्वात्मरतिरेव स्यादात्मतृप्तश्च मानवः ।
आत्मन्येव च सन्तुष्टस्तस्य कार्यं न विद्यते ॥३- १७॥

yastwaatmaratirewa syaadaatmatRRiptashcha maanawaH ।

aatmanyewa cha santuShTastasya kaaryaM na widyate ॥३- १७॥

Source: Automatic ITRANS Transliteration

But the mortal taking pleasure only in the Self, and self-fulfilled who
Is also satisfied only in the Self, duties do not exist.

But for the mortal who takes pleasure only in the Self, who is self-fulfilled, and who is satisfied only in the self, duties do not exist.

Source: Milind S. Pandit

The one who rejoices in the Self only, who is satisfied with the Self, who is content in the Self alone, for such a (Self-realized) person there is no duty.

Source: The Bhagavad-Gita: The Sacred Song

One who is, however, taking pleasure in the self, who is illuminated in the self, who rejoices in and is satisfied with the self only, fully satiated--for him there is no duty.

Source: Bhagavad Gita As It Is