Can you narrate the incident involving the two gentlemen from Goa and the differing treatment they received regarding Dakshina?

Chapter 36 recounts a curious event involving two gentlemen from Goa who came for Sai Baba's darshan. Both men surrendered at Sai's feet, filled with joy. However, Sai Baba treated them differently regarding Dakshina, or monetary offerings. He specifically asked for fifteen rupees from only one of the men, who gave it joyfully. When the second gentleman tried to offer thirty-five rupees of his own accord, Sai Baba immediately rejected the offering. This apparent partiality surprised everyone present, including Madhavrao (Shama), who questioned Sai Baba about the reason for his actions, as detailed in this chapter.