Verse
न जायते म्रियते वा कदाचिन् नायं भूत्वा भविता वा न भूयः ।अजो नित्यः शाश्वतोऽयं पुराणो न हन्यते हन्यमाने शरीरे ॥
na jāyate mriyate vā kadācinnāyaṃ bhūtvā bhavitā vā na bhūyaḥajo nityaḥ śāśvato’yaṃ purāṇona hanyate hanyamāne śarīre
This is not born, nor does it die, nor is it a thing that comes into being once and passing away will never come into being again. It is unborn, ancient, sempiternal; it is not slain with the slaying of the body.
Gītā 2·20