What was Sai Baba's specific reaction when the visiting Yogi doubted him for eating onions?

When the Yogi who had studied the Yoga Shastras visited the Masjid, he was filled with doubt upon seeing Sai Baba eating bread and onions, thinking, "How can this man remove my doubts?" Chapter 23 explains that Sai Maharaj, being omniscient, immediately perceived this doubt. He turned to Nanasaheb Chandorkar and said, "Nana, only those whose digestion is strong should eat onion. One who has the strength to digest it may eat onion freely." This pointed remark, directly addressing the Yogi's inner turmoil without being accusatory, startled the man and caused him to surrender with true devotion.