BG 2.30
देही नित्यमवध्योऽयं देहे सर्वस्य भारत। तस्मात्सर्वाणि भूतानि न त्वं शोचितुमर्हसि॥
dehī nityam avadhyo 'yaṃ dehe sarvasya bhārata / tasmāt sarvāṇi bhūtāni na tvaṃ śocitum arhasi
"In every body, the soul is indestructible — so for no being should you grieve."
4 translations · all pre-1928 or released to public domain · sources
This Atman, O Arjuna, is never born and never dies at any time. He has not come into being, does not come into being, and will not come into being. He is unborn, eternal, ever-existing, and ancient. He is not killed when the body is killed.
The soul that dwells in the body of every being is always indestructible. Therefore, O Arjuna, thou shouldest not grieve for any creature.
The soul which is not wounded by the sword, not dried by the wind, not burned by fire, not moistened by water — such is the soul in all bodies.
O descendant of Bharata! this Indweller within the body of every being is always indestructible. Therefore, for no being shouldest thou mourn.