Can you tell me about the time a devotee doubted Sai Baba's abilities and was given grapes?

This story from Chapter 35 involves a man named Boss Dharamsee, who visited Shirdi with a skeptical, 'clinical' mindset. When another devotee, Kaka, offered grapes with seeds to Baba, Baba began distributing them. Dharamsee was internally displeased because he disliked seeded grapes and was also concerned they were unwashed. He even questioned in his mind how Baba could be a true saint if he didn't know this preference. In response to this silent doubt, Baba gave him even more grapes and instructed him to eat them. When Dharamsee obeyed, he was astonished to discover that the grapes were perfectly seedless. This miracle completely shattered his ego and skepticism, replacing it with profound love for Sai.