The Related Suttas Collection 22.131

13. Ignorance

Origin

At Varanasi.

“Friend Sāriputta, they speak of this thing called ‘ignorance’. What is ignorance? And how is an ignorant person defined?”

“Friend, an unlearned ordinary person doesn’t truly understand the origin, the ending, the gratification, the drawback, and the escape when it comes to form, feeling, perception, functioning patterns, and consciousness.

This is called ignorance. And this is how an ignorant person is defined.”