sāṃkhyayoga - Verse śloka 18
śloka 18
antavanta ime dehā nityasyoktāḥ śarīriṇaḥ |
anāśino'prameyasya tasmādyudhyasva bhārata ||2-18||
Translation
These bodies of the indestructible, immeasurable, eternal embodied Atman are said to be perishable. Therefore, O Bharata! Fight.