Can you recount the incident involving the two gentlemen from Goa and their offering of Dakshina to Sai Baba?

Certainly. Chapter 36 narrates an incident where two gentlemen from Goa came for Sai Baba's darshan. Both surrendered at his feet, filled with joy. However, a curious event occurred regarding their offerings. Sai specifically asked for fifteen rupees in Dakshina from only one of the men, which he gave with joy. When the second gentleman, unprompted, offered thirty-five rupees on his own accord, Sai Baba immediately rejected the offering. This apparent partiality surprised everyone present, including Madhavrao, also known as Shama, who then asked Sai to explain his actions, as detailed in Chapter 36.