Is human readable format mandatory if we are sharing the xml with teh client

Dear team,

We have an agreement with the client to share the XML version after clearance, and internally, there is no requirement for the PDF/A-3 or human-readable format. Could you please confirm whether generating the human-readable format is mandatory? In the event of an audit by ZATCA, would the XML alone be sufficient for verification, or would they also request the human-readable format?

Thanks,
Roshna