Bhagwad Gita
Chapter 2, Verse 23
नैनं छिन्दन्ति शस्त्राणि नैनं दहति पावकः।
न चैनं क्लेदयन्त्यापो न शोषयति मारुतः।।2.23।।
The soul can never be cut into pieces by any weapon, nor can he be burned by fire, nor moistened by water, nor withered by the wind.