This was said by the Buddha, the Perfected One: that is what I heard.

“Mendicants, give up one thing and I guarantee you non-return. What one thing? Conceit is the one thing. Give it up, and I guarantee you non-return.”

The Buddha spoke this matter. On this it is said:

“Drunk on conceit, 
beings go to a bad place. 
Having rightly understood that conceit, 
the discerning give it up. 
Once they’ve given it up, 
they never return to this world.”

This too is a matter that was spoken by the Blessed One: that is what I heard.