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

“Mendicants, I do not see a single fetter, fettered by which people wander and transmigrate for a long time like the fetter of craving. Fettered by craving, people wander and transmigrate for a long time.”

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

“Craving is a person’s partner 
as they transmigrate on this long journey. 
They go from this state to another, 
but don’t escape transmigration.

Knowing this danger, 
that craving is the cause of suffering—
rid of craving, free of grasping, 
a mendicant would wander mindful.”

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