Bhagavad-gītā 8.3
BG 8.3
Open the full passageश्रीभगवानुवाच । अक्षरं ब्रह्म परमं स्वभावोऽध्यात्ममुच्यते । भूतभावोद्भवकरो विसर्गः कर्मसंज्ञितः ॥३॥
Sanskrit
śrī-bhagavān uvāca akṣaraṁ brahma paramaṁ svabhāvo 'dhyātmam ucyate bhūta-bhāvodbhava-karo visargaḥ karma-saṁjñitaḥ
Translation
The Supreme Personality of Godhead said:The indestructible, transcendental living entity is called Brahman, and his eternal nature is called adhyātma, the self. Action pertaining to the development of the material bodies of the living entities is called karma, or fruitive activities.