How did Sai Baba explain his request for a specific amount of Dakshina from a devotee whose salary had grown to seven hundred rupees?

When Shama questioned Sai Baba's actions regarding Dakshina, Baba shared a story to illustrate the deeper karmic reasons. As recounted in Chapter 36, Baba explained that a particular devotee had started his career with a salary of fifteen rupees and had made a vow to give his first month's salary to God. However, as his salary grew from fifteen to thirty, then sixty, and eventually to seven hundred rupees, his forgetfulness of the vow grew stronger. Baba stated, "He arrived here by the power of his past deeds. Then, I asked for my fifteen rupees under the pretext of Dakshina." This act was not about the money itself but about helping the devotee fulfill his forgotten promise and clear his spiritual debt.