have no business doing something/to do something

have no business (doing something)

To have no legitimate reason, experience, or authority to do something. Mom, you had no business eavesdropping on my phone call like that! He has no business running this meeting—he has no idea what this project entails.
See also: business, have, no
Farlex Dictionary of Idioms.

have no business doing something/to do something

have no right to do something: You have no business being here.
See also: business, have, no, something
Farlex Partner Idioms Dictionary
See also:
  • have no business (doing something)
  • have no business doing
  • What number are you calling from?
  • (you've) got to get up pretty early in the morning to (do something)
  • pull in (one's) ears
  • pull in ears
  • candy-coat
  • expose (someone, something, or oneself) to (someone or something)
  • expose to
  • get wind of something