Bhagavad Gita 2.30

देही नित्यमवध्योऽयं देहे सर्वस्य भारत।तस्मात्सर्वाणि भूतानि न त्वं शोचितुमर्हसि ॥२.३०॥

dehī nityamavadhyo’yaṃ dehe sarvasya bhāratatasmātsarvāṇi bhūtāni na tvaṃ śocitumarhasi

This indweller in the body of everyone is ever indestructible, O Arjuna; therefore, you should not grieve for any creature.

गीता