What happened when two gentlemen from Goa came to see Sai Baba, and how did he treat their offerings?

According to Chapter 36 of the Shri Sai Satcharitra, two gentlemen from Goa came together for Sai Baba's darshan. Although they both came to pay their respects, Baba treated their offerings very differently. He specifically asked for a Dakshina of fifteen rupees from one of the men, who gave it joyfully. However, when the second gentleman offered thirty-five rupees of his own accord, Sai Baba immediately rejected the offering. The text from Chapter 36 notes that this apparent partiality surprised everyone present, including Madhavrao (Shama), who decided to ask Baba about the reason for his actions.