Per AZ Statute 43-104, AZ-source income includes "income from any activities carried on in this state." Therefore any income from remote work carried on from an AZ location is AZ-source income, and is taxable to you as a non-resident by AZ.
https://law.justia.com/codes/arizona/2018/title-43/section-43-104/
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
