What was Sai Baba's underlying justification for his seemingly inconsistent behavior regarding the Dakshina from the two Goa visitors?

Sai Baba's justification for his seemingly partial behavior was rooted in deep karmic principles, as revealed in Chapter 36. When questioned by Shama, Baba explained that he personally takes nothing from anyone and, being completely detached, has no need for wealth. His cryptic statement, "Mother Masjid demands what is owed, and the giver becomes free from debt," reframes the act as the settlement of a past obligation rather than a simple offering. He reinforced this by stating that debt, enmity, and murder are karmic burdens that are not escaped even after an eon, implying the transaction was a resolution of such a long-standing debt.