Is testimony valid if one witness affirms the claimant's detailed statement or says 'I testify to the like of that'?

Primary text

If the claimant details their claim, or if one witness details their testimony and the other affirms, saying, 'I testify to the like of that,' or, upon the claimant's detailed statement, says, 'I testify to that, or to this,' the testimony is deemed sufficient.