Is the testimony accepted when two parties litigating a dispute later testify before a judge regarding that matter?

Primary text

If two men initiate a dispute over an asset and litigate it, and then testify before the judge concerning that matter, their testimony is not rejected, even if one of them was untruthful in contradicting his associate. If untruthfulness were established solely by contradicting an associate, then accepting the testimony of both would be invalid, especially if corruption (juruh) is confirmed in one of them.