What was Shama's role in the story of the two gentlemen from Goa, and how did he challenge Baba?

In the account from Chapter 36, Madhavrao, also known as Shama, served as an observer who questioned Sai Baba's seemingly inconsistent actions. After witnessing Baba accept Dakshina from one man from Goa while rejecting a larger sum from his friend, Shama directly confronted Baba about this 'partiality.' He asked why Baba would cause disappointment by returning a voluntary offering and noted the strange contrast between showing affection for a small amount of money but a selfless attitude toward a larger sum. Shama even stated that he wouldn't act that way, prompting Baba to begin his deeper explanation about debt and the role of the 'Mother Masjid.'