Bhagavad Gita 8.3
श्री भगवानुवाच। अक्षरं ब्रह्म परमं स्वभावोऽध्यात्ममुच्यते। भूतभावोद्भवकरो विसर्गः कर्मसंज्ञितः।।8.3।।
śrī bhagavānuvāca| akṣaraṃ brahma paramaṃ svabhāvo'dhyātmamucyate| bhūtabhāvodbhavakaro visargaḥ karmasaṃjñitaḥ||8.3||
shri bhagavanuvaca aksharam brahma paramam svabhavo'dhyatmamucyate bhutabhavodbhavakaro visargah karmasamjnitah8.3
Meaning
Krishna answers: Brahman is the imperishable, supreme reality. The individual nature of each being is called the Self (Adhyatma). The creative force that brings forth beings is called karma (action).
श्रीभगवान् बोले — परम अक्षर तत्त्व ब्रह्म है; अपने स्वरूप को अध्यात्म कहा जाता है, और भूतों के भावों को उत्पन्न करने वाला विसर्ग कर्म कहलाता है।
This is verse 3 of 28 in Chapter 8 (Aksara Brahma Yoga) of the Bhagavad Gita.