How did Sai Baba respond to the desperate parents of the boy with the bone-cyst?

When the distraught parents approached Sai Baba in Shirdi, they explained their son's suffering and their own exhaustion after all medical treatments had failed. As Chapter 34 of the Shri Sai Satcharitra describes, they pleaded with him, having come as a last resort. Sai Baba, referred to as the embodiment of compassion, responded with immediate reassurance. He told them to be worry-free and gave them a simple, powerful instruction. According to the account in Chapter 34, he said, "Take this Udi and smear it on that wound." This response underscores his compassionate nature and his confidence in the power of the Udi, assuring them that those who seek shelter in the Masjid shall never face downfall.