Based on the experiences of the two guests, how did Sai Baba reveal past financial events to them?

Chapter 36 illustrates Sai Baba's omniscience through his interactions with two guests. For the first guest, Baba used a request for money as a pretext to remind him of a forgotten vow to offer his first month's salary to Lord Datta after securing a job. For the second guest, Baba accurately described a personal tragedy: a trusted Brahmin had stolen a treasure of thirty thousand in notes by making a hole in a wall cupboard. The guests confirmed that "Every word he spoke is exactly our story," realizing that Sai knew their histories without being told, which they considered a miracle.