justify to

justify (something) to (one)

To attempt to prove that something is just, right, or valid to one. You really don't need to justify your decision to me. You're an adult, so you can do as you like. She is being asked to justify her actions to the board of directors.
See also: justify
Farlex Dictionary of Idioms.

justify something to someone

to explain something to someone and show why it is necessary. Please try to justify this to the voters. I can justify your action to no one.
See also: justify
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • justify (something) to (one)
  • justify by
  • justify
  • justify (something) by (doing something)
  • hang up (one's) spurs
  • be in (one's) hands
  • cry wolf
  • cry wolf, to
  • be more trouble than it's worth
  • the boy who cried wolf
References in classic literature
(3) that during their military movement they should have at their head a man who could justify to himself and to them the deceptions, robberies, and murders which would have to be committed during that movement.
War and Peace
The goal was for Justify to run in a major race this summer, likely the Travers Stakes at Saratoga, and be pointed toward the $5 million Breeders' Cup Classic on Nov.
Triple Crown winner Justify retired from racing
The latest betting odds favor Justify to finish first in the 2018 Belmont Stakes Saturday after already having done so in the Kentucky Derby and Preakness Stakes.
Justify Favored For Triple Crown
"Sentinel's success has been closely linked to our ability to successfully justify to our customers the financial benefits of a converged AVVID (Cisco's Architecture for Voice, Video and Integrated Data) solution," said Robert Keblusek, vice president business development at Sentinel Technologies, Inc., a Cisco IP-Telephony Specialized Channel Partner in Downers Grove, Illinois.
Cisco continues to help channel partners accelerate the adoption of converged networks
But Smith turned it into an advantage, gunning Justify to the lead and defying any horse to challenge.
Justify wins Belmont to become 13th Triple Crown champ
Betting site 5Dimes has even odds for Justify to win at Belmont, while the field received -130 odds.
Justify The Favorite To Win Belmont, Capture Triple Crown