to the best of (one's) knowledge
to the best of (one's) knowledge
As far as one is aware; according to one's genuine knowledge or opinion. The shopkeeper assured investigators that, to the best of his knowledge, he had not seen the suspect pass through that morning. To the best of my knowledge, we should be done with the seminar around lunchtime.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
to the best of your beˈlief/ˈknowledge
as far as you know: He never made a will, to the best of my knowledge.Farlex Partner Idioms Dictionary © Farlex 2017