Have something on good authority

Pro Tip 1/3

Trust Implication

This phrase suggests that the speaker has been told by a reliable source, implying credibility.

I have it on good authority that the test results will be released next week.

Pro Tip 2/3

Not Firsthand

The information isn't acquired firsthand, but from someone believed to be trustworthy.

They have it on good authority that the event has been postponed.

Pro Tip 3/3

Not Fact-Checked

Even though the source is trusted, the information should still be considered unconfirmed until verified.

I have it on good authority that our team won, but let's check the official scores to be sure.