How did Sai Baba demonstrate his omniscience to Laxmichand regarding a cough?

A profound example of Sai Baba's inner knowledge is detailed in Chapter 28. During a visit to Shirdi, Laxmichand attended the Chavadi procession and noticed Baba had a cough. In his own mind, Laxmichand privately thought, "It seems like someone's evil eye has affected him." The very next morning in the masjid, Baba openly spoke the same thought, questioning if his cough was the effect of an evil eye. As Chapter 28 highlights, this caused Laxmichand to wonder how Baba could know his exact thought, leading him to the realization that Baba dwells in everyone's heart.