How did Sai Baba respond when the family from Malegaon pleaded for their son's healing, and what were his specific instructions?

Chapter 34 describes Sai Baba's response as one of pure compassion. When the parents arrived and prostrated at his feet, narrating their son's suffering with choked voices, Sai, the embodiment of compassion, immediately reassured them. He told them to become worry-free and gave them a powerful promise that those who seek shelter in the Masjid will never face downfall. His specific, practical instruction was simple and direct: He gave them Udi and told them, "Take this Udi and smear it on that wound." This demonstrates the power he attributed to the sacred ash.