Audit documentation serves three main  (1) to provide the principal support for the auditors' report, (2) to aid auditors in conducting and supervising the audit, and (3) to allow for the review of audit quality.
Audit documents allow for the review of audit quality and to verify every line in the expense report. 
mnli hypothesis: Audit documents allow for the review of audit quality and to verify every line in the expense report.  premise: Audit documentation serves three main  (1) to provide the principal support for the auditors' report, (2) to aid auditors in conducting and supervising the audit, and (3) to allow for the review of audit quality.