Based on Chapter 5, who was the source of the story about Devidas and the Fakir, and what does the chapter foreshadow for future readings?

Chapter 5 explicitly states that the conduct of the Guru and disciple, specifically the story involving Devidas and the Fakir, was made known by Mahalsapati, who is described as a great devotee of Sainath. After concluding this narrative, the chapter's author, Hemadpant, foreshadows what is to come in the book. It is promised that the next narratives will be even more profound, covering topics such as the previous condition of the mosque, the difficulty in paving its floor, the unresolved question of Sai Baba's Hindu or Muslim lineage, and how Baba took on the sufferings of his devotees through practices like washing clothes and grinding.