Can you describe the incident involving Baba's cough and Laxmichand's reaction?

During a Chavadi procession at night, Laxmichand witnessed Sai Baba develop a cough. In his mind, Laxmichand immediately worried about Baba and speculated that the persistent cough might be the result of someone's evil eye affecting him. Chapter 28 explains that this was merely a private thought that arose in Laxmichand's mind. The significance of this event is revealed the following morning when Laxmichand went to the masjid, and Baba's own words echoed the very same thought about the cause of his cough, demonstrating Baba's omniscience.