Then it should be said:
[The most that can be said regarding the case of Mālik ibn Nuwayra is that his life was inviolable](1), and that Khālid killed him on the basis of an interpretive judgment. This does not make it permissible to execute Khālid. Likewise, when Usāma ibn Zayd killed the man who had said, “There is no deity but Allah,” the Prophet—may Allah bless him and grant him peace—said to him, “O Usāma, did you kill him after he had said, ‘There is no deity but Allah’? O Usāma, did you kill him after he had said, ‘There is no deity but Allah’? [O Usāma(2), did you kill him after he had said, ‘There is no deity but Allah’?”](3) He denounced his killing of the man but did not require him to undergo retaliatory execution, pay blood money, or offer expiation.
Muhammad ibn Jarīr al-Tabarī and others narrated the following from Ibn Abbās and Qatāda: “This verse—Allah Most High’s words, ‘Do not say to one who offers you peace, “You are not a believer,”’ and the remainder of the verse [Surah al-Nisā: 94]—was revealed concerning Mirdās, a man from Ghatafān. The Prophet—may Allah bless him and grant him peace—sent an army to his people under the command of Ghālib al-Laythī. His companions fled, but he did not. He said, ‘I am a believer.’ The cavalry came upon him in the morning, and he greeted them with peace; but they killed him and seized his sheep. Allah then revealed this verse. The Messenger of Allah—may Allah bless him and grant him peace—ordered that his property be returned to his family and that his blood money be paid to them, and he forbade the believers from doing anything of the kind.”(4)
Likewise, Khālid ibn al-Walīd killed members of Banū Jadhīma while acting on an interpretive judgment. The Prophet—may Allah bless him and grant him peace—raised his hands and said, “O Allah, I declare before You that I am free of what Khālid has done.”(5) Despite this, the Prophet—may Allah bless him and grant him peace—did not execute him, because he had acted on an interpretive judgment.
Thus, if the Prophet—may Allah bless him and grant him peace—did not execute him despite his having killed(6) more than one of the