Tayodhammasutta
“Tayome, bhikkhave, dhammā loke na saṁvijjeyyuṁ, na tathāgato loke uppajjeyya arahaṁ sammāsambuddho, na tathāgatappavedito dhammavinayo loke dibbeyya. Katame tayo? Jāti ca, jarā ca, maraṇañca— ime kho, bhikkhave, tayo dhammā loke na saṁvijjeyyuṁ, na tathāgato loke uppajjeyya arahaṁ sammāsambuddho, na tathāgatappavedito dhammavinayo loke dibbeyya. Yasmā ca kho, bhikkhave, ime tayo dhammā loke saṁvijjanti tasmā tathāgato loke uppajjati arahaṁ sammāsambuddho, tasmā tathāgatappavedito dhammavinayo loke dibbati.
Three Things
“Mendicants, if three things were not found, the Realized One, the perfected one, the fully awakened Buddha would not arise in the world, and the teaching and training proclaimed by the Realized One would not shine in the world. What three? Rebirth, old age, and death. If these three things were not found, the Realized One, the perfected one, the fully awakened Buddha would not arise in the world, and the teaching and training proclaimed by the Realized One would not shine in the world. But since these three things are found, the Realized One, the perfected one, the fully awakened Buddha arises in the world, and the teaching and training proclaimed by the Realized One shines in the world.