Bhagavad-gītā 4.15
BG 4.15
Open the full passageएवं ज्ञात्वा कृतं कर्म पूर्वैरपि मुमुक्षुभिः । कुरु कर्मैव तस्मात्त्वं पूर्वैः पूर्वतरं कृतम् ॥१५॥
Sanskrit
evaṁ jñātvā kṛtaṁ karma pūrvair api mumukṣubhiḥ kuru karmaiva tasmāt tvaṁ pūrvaiḥ pūrvataraṁ kṛtam
Translation
All the liberated souls in ancient times acted with this understanding of My transcendental nature. Therefore you should perform your duty, following in their footsteps.