How to say “Request factual information” professionally

Level 1: To ensure I can provide the most accurate and effective response, could you please furnish the specific data points or background information relevant to this request? This will help me proceed with a well-informed approach.

Level 2: Before I dive into potential solutions, it would be beneficial to have a clearer understanding of the foundational data supporting this initiative. Could you direct me to the source of the specific metrics or assumptions influencing this direction?

Level 3: I'm prepared to execute on this, but my current understanding of the underlying facts is insufficient to meet the established KPIs for data integrity. Per our Q3 'Operational Excellence' directive, could you please provide the verified inputs required to populate the 'Factual Basis' column in the project charter?

Level 4: I require the precise factual information to proceed with this task. Without it, any deliverables will be based on conjecture and will likely require significant rework, impacting our project timeline and budget.

Level 5: What facts?

Level 1: To ensure our proposed solution precisely addresses your requirements and delivers optimal value, could you please provide the underlying factual data or specific metrics that inform this request? This will allow us to tailor our approach effectively.

Level 2: Before we finalize the scope for this phase, it would be prudent to review the foundational data points driving these specifications. Could you share the validated information that underpins these key assumptions?

Level 3: We are committed to delivering a solution that not only meets but exceeds your expectations, adhering strictly to our 'Fact-Based Implementation' framework. To mitigate any potential 'assumption-driven scope creep,' kindly furnish the specific, verifiable data points outlined in Appendix C of our mutually agreed upon SOW.

Level 4: To avoid costly revisions and ensure project success, we require the precise factual information related to this request. Without it, we cannot guarantee the accuracy or efficacy of our deliverables, which could impact project timelines and budget.

Level 5: Is that a fact?

Level 1: To ensure we're both operating from the same validated information, could you share the source or specific data points you're referencing? This helps align our efforts and avoid discrepancies.

Level 2: Before incorporating this into my part of the task, I'd appreciate it if you could clarify the factual basis for these figures. Having the underlying data will strengthen our combined output.

Level 3: I'm diligently working to integrate your input, but to adhere to our 'One Source of Truth' policy and avoid any 'data drift' flagged in the last audit, could you point me to the canonical repository for these facts? My internal 'BS Detector' seems to be offline.

Level 4: I cannot proceed with this aspect of the project until I receive verifiable factual information. Relying on unconfirmed data introduces significant risk and will necessitate a halt in my progress.

Level 5: Proof or it didn't happen.