Can you recount the story of Tatya Kote Patil's interaction with Sai Baba at the mosque as described in Chapter 9?

Certainly. Chapter 9 describes an incident where Tatya Kote Patil was heading to Kopargaon for the weekly market. He stopped his tonga at the mosque to have Sai Baba's darshan and, as the text puts it, make a "pretext of seeking permission" to leave. It was clear that Tatya was impatient and in a hurry to get going. However, Sai Baba, who is described as knowing the right and wrong time for everything, perceived Tatya's impatience. Instead of immediately granting permission, Baba simply told him, "Wait a little." This brief story in Chapter 9 serves as a direct example of Baba's control over the movements of his devotees and his method of teaching patience.