What happened when Kaka Mahajani's friend, who was against idol worship, went to see Sai Baba?

The story of Kaka Mahajani's friend provides a fascinating example of Sai Baba's omniscience. As detailed in Chapter 35, this friend was a devotee of the formless and had agreed to visit Shirdi with Kaka only on the conditions that he would neither bow his head nor offer any Dakshina. However, the moment he set foot in the mosque, Baba called out to him in a voice that was an exact imitation of his deceased father's. This experience so deeply astonished and moved him that he completely forgot his prior resolve and instinctively bowed his head at Baba's feet.