Volume 5 · Book 59 · Hadith 370
Narrated Al-Bara bin Azib: Allah's Apostle sent a group of persons to Abu Rafi. Abdullah bin Atik entered his house at night, while he was sleeping, and killed him.
— Sahih Bukhari, Volume 5, Book 59: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi), Hadith #370