I read about a wealthy but sad merchant who wanted a son. Can you recount his story from the provided source?

You are referring to the story of Ratanji, a wealthy Parsi merchant detailed in Chapter 14. Despite his immense fortune and charitable nature, he was consumed by sorrow because he had no son, only a large family of twelve daughters. This lack of a male heir made his worldly happiness feel empty and filled him with constant anxiety. Following the guidance of Das Ganu, he decided to travel to Shirdi to seek the help of Sai Baba, hoping the saint could fulfill his deepest desire and grant him a son.