2:13  

देहिनोऽस्मिन्यथा देहे कौमारं यौवनं जरा ।
तथा देहान्तरप्राप्तिर्धीरस्तत्र न मुह्यति ॥२- १३॥

dehino'sminyathaa dehe kaumaaraM yauwanaM jaraa ।

tathaa dehaantarapraaptirdhiirastatra na muhyati ॥२- १३॥

Source: Automatic ITRANS Transliteration

As for the embodied one, in this body, childhood, youth, old age,
So acquisition of another body. The resolute are not confused by that.

Source: Milind S. Pandit

Just as the Atma acquires a childhood body, a youth body, and an old age body during this life, similarly Atma acquires another body after death. The wise are not deluded by this. (See also 15.08)

Source: The Bhagavad-Gita: The Sacred Song

As the embodied soul continuously passes, in this body, from boyhood to youth to old age, the soul similarly passes into another body at death. A self-realized soul is not bewildered by such a change.

Source: Bhagavad Gita As It Is