attest to(redirected from attests to)
To confirm that something is true. I can attest to her whereabouts on the night of the crime—she was with me the entire time.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
attest to something
to certify or bear witness to a fact. I cannot attest to what you have reported. The witness attested to the suspect's presence at the scene of the crime.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.