What happened when the shopkeepers refused to give Sai Baba oil for the lamps, and how did he react?

Chapter 5 recounts a significant event when local grocers, annoyed at providing free oil daily, conspired to stop. When Baba came to ask for oil as per his routine, they all refused him. Baba returned to the mosque quietly without argument. He then performed a miracle: finding a tiny bit of oil in his tin pot, he added water, drank it as an offering to Brahman, and then filled the lamps with plain water. He lit the wicks, and to the amazement of the watching grocers, the lamps burned brightly all night long, demonstrating his divine power.