Is atonement (Kaffarah) obligatory for the intentional killing of a protected non-Muslim?

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Atonement is obligatory upon the intentional killing of a protected non-Muslim, encompassing both a Dhimmi (resident non-Muslim under protection) and a Musta'man (temporary visitor under truce). This view is held by the majority of scholars. The evidence for this obligation is the Quranic statement: "And if he was from a people with whom you have a treaty, then a compensating payment (diyyah) to his family and the freeing of a believing slave (tahrir raqabah mu'minah)." (Quran 4:92). A Dhimmi possesses a treaty (Mithaq), and this explicit statement (Mantuq) takes precedence over the argument from inference (Mafhum al-Khitab). Furthermore, the killed person is a human being unjustly slain, thus necessitating atonement just as in the case of a Muslim.