Chapter II Sloka 13

deihnae=iSmNywa dehe kaEmar< yaEvn< jra,
twa dehaNtràaiÝxIRrStÇ n muýit.

dehino'sminyath˜ dehe
kaum˜raÕ yauvanaÕ jar˜ |
tath˜ deh˜ntarapr˜ptir
dheerastatra na muhyati ( 2|13)||

2.13 Just as in this body the embodied (soul) passes into childhood, youth and old age, so also does it pass into another body; the firm man does not grieve at this.