In a 498A case, a husband is questioning the validity of his mother-in-law's bank passbook, which appears to have manipulated dates. He wants to know if he can obtain his mother-in-law's bank statement via his brother-in-law to counter claims of a large cash payment. The advice given is that direct requests are unlikely to succeed, and the court must be petitioned to obtain such documents. It's crucial to discuss this with your legal counsel, as they can challenge the evidence during cross-examination.