Can you recount the incident with the two gentlemen from Goa and how Sai Baba treated their offerings of Dakshina?

Chapter 36 narrates a curious event involving two gentlemen from Goa who came for Sai Baba's darshan. Although both men came together and surrendered at his feet, Baba's interaction with them regarding Dakshina was strikingly different. He specifically asked one of the men for fifteen rupees, which the man gave with joy. However, when the second gentleman voluntarily offered thirty-five rupees, Baba immediately rejected and returned the money. This act of apparent partiality surprised everyone present, including Madhavrao (Shama), who couldn't understand why Baba would accept a smaller, solicited amount while refusing a larger, freely given one.