leave (someone or something) be

To not interact with, interfere with, or bother someone or something. Come on, she didn't do anything to you. Leave her be. At a certain point, you have to just leave the painting be instead of continuing to make changes to it. I know you're trying to help, but I'd really rather you just leave my team be right now so we can focus on our work.

leave it be

An imperative to refrain from engaging in further discussion or from interacting or approaching something. Synonymous with the phrase "leave it alone." A: "Tell me why you don't want to be my roommate anymore." B: "Oh, please leave it be, I don't want to talk about this right now!" Don't touch that, Mikey—leave it be!