In a Good Way Sukhitasutta

At Sāvatthī. Sāvatthiyaṁ viharati.

“Mendicants, this transmigration has no known beginning. … “Anamataggoyaṁ, bhikkhave, saṁsāro …pe… When you see someone in a good way, in a happy state, you should conclude: yaṁ, bhikkhave, passeyyātha sukhitaṁ susajjitaṁ, niṭṭhamettha gantabbaṁ: ‘In all this long time, we too have undergone the same thing.’ ‘amhehipi evarūpaṁ paccanubhūtaṁ iminā dīghena addhunā’ti.

Why is that? Taṁ kissa hetu? This transmigration has no known beginning. … Anamataggoyaṁ, bhikkhave, saṁsāro. Pubbā koṭi na paññāyati …pe… This is quite enough for you to become disillusioned, dispassionate, and freed regarding all conditions.” alaṁ vimuccitun”ti.