Bhagavad Gita 2.13

देहिनोऽस्मिन्यथा देहे कौमारं यौवनं जरा ।
तथा देहान्तरप्राप्तिर्धीरस्तत्र न मुह्यति  ॥

dehino’smin-yathā dehe kaumāraṃ yauvanaṃ jarā
tathā dehāntara-prāptir-dhīras-tatra na muhyati – 2.13

Just as the one dwelling in the body undergoes childhood, youth and old age, so too is the transition from the body. The wise one is not deluded about it.