Bhagavad Gita 2.24

अच्छेद्योऽयमदाह्योऽयमक्लेद्योऽशोष्य एव च।नित्यः सर्वगतः स्थाणुरचलोऽयं सनातनः ॥२.२४॥

acchedyo’yamadāhyo’yamakledyo’śoṣya eva canityaḥ sarvagataḥ sthāṇuracalo’yaṃ sanātanaḥ

This Self cannot be cut, burned, wetted, nor dried up; it is eternal, all-pervasive, stable, immovable, and ancient.

गीता