I've heard a story about Sai Baba and a black dog. Can you tell me what the Satcharita says about it in Chapter 40?

The provided sections of Chapter 40 of the Satcharita do not mention a story involving Sai Baba and a black dog. The narrative in these passages focuses entirely on an incident with a devotee named Dev. Dev felt disappointed because he believed Baba did not attend his Udyapan ceremony as promised. However, Baba later clarified through Jog that he had indeed attended in the form of a Sanyasi with two other people. Baba explained, "I said I would come with two others, and I went with two others," thus fulfilling his promise, a detail confirmed in Chapter 40. The story is about faith and recognizing the divine in unexpected forms.