Mustaʾmīn or Musta'man (Arabic: مستأمن) is a historical Islamic term for a non-Muslim foreigner temporarily residing in Muslim lands with aman, or guarantee of short-term safe-conduct (aman mu'aqqat), affording the protected status of dhimmi (non-Muslim subjects permanently living in a Muslim-ruled land) without the payment of jizya.[1]
Merchants, messengers, students and other groups could be given an aman,[1] while foreign envoys and emissaries were automatically protected.[2]