Can you describe the incident involving Damu Anna, his friend, and the business partnership they considered?

Damu Anna considered a business partnership and mentally offered Sai Baba a share of the potential profits. As Chapter 25 explains, Baba, being omniscient, knew Anna's secret thoughts and immediately cautioned him. He lovingly hinted, "We are not in anything (partnerships), Bapu," and also suggested a future loss by saying, "You will buy five seers and give seven seers." Damu Anna understood this warning and abandoned the deal. His friend, however, thought him foolish for listening to a 'Fakir' and proceeded with other partners. They engaged in speculation and suffered a major financial loss. This outcome led the friend to regret his mockery, admire Anna's firm faith, and acknowledge the greatness of Sai Baba's mercy and foresight.