Soul is eternal

न जातु कामान्न भयान्न लोभात् धर्मं त्यजेज्जीवितस्यापि हेतो: |
नित्यो धर्म: सुखदु:खे त्वनित्ये नित्यो जीवो धातुरस्य त्वनित्य: || – महाभारत
Meaning : One should never forsake Righteousness out of desire, fear, greed or fear of loss of life because Righteousness is permanent while happiness and unhappiness are only momentary. The embodied soul is eternal while the gross body is temporary