I heard there's a story about greed in Chapter 47. What does the chapter's introduction say about this story and why it's being told?

Yes, the introductory portion of Chapter 47 sets the stage for a story specifically about the dangers of greed. Following a reference to a previous story about goats, the text asks listeners to "listen now with attention to this story of how the extreme state of greed for wealth leads to a downfall." This story is presented as a direct suggestion from Sai's "complete merciful glance." The purpose of telling this story is to serve as a cautionary tale and a moral lesson. As stated in Chapter 47, by keeping an eye on the moral, listeners can achieve the fulfillment of their purpose. The narrative is framed as a way to understand the negative consequences of avarice.