What supernatural event involving fire is recounted in the introduction before Maharaj came to Shirdi?

The introductory chapter recounts a miraculous event that demonstrated Maharaj's powers before his arrival in Shirdi. After Maharaj helped a man named Chandbhai locate his lost horse in the forest, he wished to smoke his chillum but there was no fire available. As detailed in Chapter 0, Maharaj simply struck his tongs on the ground, and from this action, a fire was produced. This allowed him to complete his task and showcased his extraordinary abilities to Chandbhai, who then insisted Maharaj visit his home.