The right of the people under the protection [of Islam] (dhimma) is that you accept from them what God has accepted from them and you do no wrong to them as long as they fulfil God's covenant.
وحق الذمة أن تقبل منهم ما قبل الله عز وجل [منهم] ولا تظلمهم ما وفوا لله عز وجل بعهده
Similar narrations
Man Lā Yaḥḍuruh al-Faqīh #57"Any non-Muslim under the protection of Islam (dhimmi) who buys land from a Muslim is obligated to pay Khums on it."