Why did the grocers decide to stop giving Baba oil, and what was their reaction after witnessing his miracle?

The grocers' decision to stop providing oil was born from a collective 'wicked idea'. According to Chapter 5, Baba would get oil for free daily, and the shopkeepers came to view this as a 'nuisance' that they conspired to end. However, their attitude shifted dramatically after they refused him oil and saw him light the lamps with water. The text describes them as being so amazed they 'put their fingers in their mouths.' They were filled with repentance, realizing they had sinned by lying to Baba and causing him needless trouble. This powerful display made them tremble as they recognized the immense power they had just witnessed.