What is the story of the Yogabhyasi (practitioner of Yoga) who visited Sai Baba in Chapter 23?

Chapter 23 recounts the story of a practitioner of Yoga, well-versed in the Yoga Shastras, who came to Sai Baba hoping to achieve Samadhi. His faith was shaken when he saw Baba eating bread with onions, thinking such a person could not help him. The omniscient Baba immediately perceived his doubt and remarked, "only those whose digestion is strong should eat onion." This statement startled the Yogi, who then surrendered with true devotion. Later, he sat with Baba, had his doubts resolved, and left happily with Udi and blessings, demonstrating how Baba could correct even subtle doubts in a devotee's mind.