Paṭhamasamaṇabrāhmaṇa sutta: Ascetics and Brahmins (1st)

“Mendicants, whatever ascetics and brahmins truly awaken—in the past, future, or present—all of them truly awaken to the four noble truths.

What four? The noble truths of suffering, the origin of suffering, the cessation of suffering, and the practice that leads to the cessation of suffering. …

That’s why you should practice meditation …”