Mahanidanasutta 4.1

4.1

‘Jātipaccayā jarāmaraṇan’ti iti kho panetaṃ vuttaṃ, tadānanda, imināpetaṃ pariyāyena veditabbaṃ, yathā jātipaccayā jarāmaraṇaṃ.

‘Rebirth is a requirement for old age and death’—that’s what I said. And this is a way to understand how this is so.