have to do with
To be about; be on the subject of or connected with.
The book has to do with airplanes.
Ralph insisted that he had nothing to do with breaking the window.
What does your suggestion have to do with our problem?
To know or be a friend of; work or have business with. Usually used in negative sentence.
Tom said he didn't want to have anything to do with the new boy.
I had nothing to do with the party; I was home that night.