QS. Al-Qasas [28:15]

wadakhala almadiinata 'alaa hiini ghaflatin min ahlihaa fawajada fiihaa rajulayni yaqtatilaani haadzaa min syii'atihi wahaadzaa min 'aduwwihi fastaghaatsahu alladzii min syii'atihi 'alaa alladzii min 'aduwwihi fawakazahu muusaa faqadhaa 'alayhi qaala haadzaa min 'amali alsysyaythaani innahu 'aduwwun mudhillun mubiinun

And he entered the city at a time of inattention by its people and found therein two men fighting: one from his faction and one from among his enemy. And the one from his faction called for help to him against the one from his enemy, so Moses struck him and [unintentionally] killed him. [Moses] said, "This is from the work of Satan. Indeed, he is a manifest, misleading enemy." [15]

— Sahih International