Sahih al-Bukhari 4284
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by Abu Huraira
Arabic
حَدَّثَنَا أَبُو الْيَمَانِ، حَدَّثَنَا شُعَيْبٌ، حَدَّثَنَا أَبُو الزِّنَادِ، عَنْ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي هُرَيْرَةَ، رضى الله عنه قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْزِلُنَا ـ إِنْ شَاءَ اللَّهُ، إِذَا فَتَحَ اللَّهُ ـ الْخَيْفُ، حَيْثُ تَقَاسَمُوا عَلَى الْكُفْرِ ".
English translation
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "If Allah makes us victorious, our encamping place will be Al-Khaif, the place where the infidels took an oath to be loyal to Heathenism (by boycotting Banu Hashim, the Prophet's folk)
Reference: Sahih al-Bukhari 4284, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.