Can you tell me the story of Kaka Mahajani's skeptical friend and his visit to Shirdi?

Chapter 35 narrates the story of a friend of Kaka Mahajani who was initially averse to idol worship and a devotee of the formless. This man agreed to visit Shirdi only out of a 'clinical curiosity,' setting two conditions: he would not bow his head, nor would he provide any Dakshina. However, upon arriving at the mosque and setting foot on the step, Sai Baba greeted him from a distance with the words, 'Why have you come in this manner?' The tone of Baba's voice was so strikingly similar to his deceased father's that the friend was astonished and deeply moved. Forgetting his resolve, he spontaneously bowed his head at Baba's feet.