Why did Sai Baba accept 15 rupees from one man from Goa but reject 35 rupees from his companion?

The provided text from Chapter 36 details the event but does not explicitly state the reason for Sai Baba's actions. It highlights that this apparent partiality was a source of great surprise for everyone, prompting Madhavrao (Shama) to question Baba about it. The narrative uses this incident to illustrate a key point made earlier in the chapter: that Sai Baba creates many "inconceivable events" and his "great prowess" is demonstrated through such mysterious occurrences. Therefore, the story serves to show that Baba's motivations were often beyond ordinary human comprehension, rather than to provide a straightforward explanation for this specific interaction.