Bhagavad Gita Chapter 2.19
ya enaḿ vetti hantāraḿ
yaś cainaḿ manyate hatam
ubhau tau na vijānīto
nāyaḿ hanti na hanyate
Translation
Neither he who thinks the living entity the slayer nor he who thinks it slain is in knowledge, for the self slays not nor is slain.