Who did Sai Baba instruct to feed a black dog and for what reason?

The provided text from Chapter 40 does not contain any information about Sai Baba instructing anyone to feed a black dog. Instead, this chapter details a different story about a devotee named Dev who held an Udyapan ceremony. Dev invited Baba, who promised to attend with two others. As described in Chapter 40, Baba appeared in the guise of a Sanyasi with two companions, attended the feast, and later revealed this to Dev through another devotee, Jog, to show that He had kept His word even when he was not recognized.