What was Sai Baba's initial explanation for accepting Dakshina from one man but not the other, and what deeper principle did he allude to?

When questioned by Shama about his seemingly partial behavior towards the two gentlemen from Goa, Sai Baba offered a profound explanation that went beyond the surface-level transaction. As recorded in Chapter 36, Baba's response was, "Shama, you don't know; I don't take anything from anyone. Mother Masjid demands what is owed, and the giver becomes free from debt." This statement reframes the act of giving Dakshina not as a simple offering to a person, but as the settling of a karmic debt. He further emphasized his complete detachment from worldly wealth, asking, "What house do I have, or what family life? Why would I need wealth?" He concluded by stating a universal law that "debt, enmity, and murder—these are not escaped by the doer even at the end of an eon," suggesting the incident was rooted in a past life connection.