Usamah bin Zaid said I asked Messenger of Allaah(ﷺ) where will you encamp tomorrow? (This is asked on the occasion of his Hajj). He replied “Did ‘Aqil leave any house for us?” He again said “We shall encamp in the valley (Khaif) of Banu Kinanah where the Quraish took an oath upon disbelief, that is, Al Muhassab.” The oath was that Banu Kinanah concluded a pact with the Quraish against Banu Hashim “they would have no marital relationship with them, nor would give them accommodation nor would have any commercial ties with them.” Al Zuhri said Al Khaif means valley.

حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ عَلِيِّ بْنِ حُسَيْنٍ، عَنْ عَمْرِو بْنِ عُثْمَانَ، عَنْ أُسَامَةَ بْنِ زَيْدٍ، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ أَيْنَ تَنْزِلُ غَدًا فِي حَجَّتِهِ قَالَ ‏"‏ هَلْ تَرَكَ لَنَا عَقِيلٌ مَنْزِلاً ‏"‏ ‏.‏ ثُمَّ قَالَ ‏"‏ نَحْنُ نَازِلُونَ بِخَيْفِ بَنِي كِنَانَةَ حَيْثُ قَاسَمَتْ قُرَيْشٌ عَلَى الْكُفْرِ ‏"‏ ‏.‏ يَعْنِي الْمُحَصَّبَ وَذَلِكَ أَنَّ بَنِي كِنَانَةَ حَالَفَتْ قُرَيْشًا عَلَى بَنِي هَاشِمٍ أَنْ لاَ يُنَاكِحُوهُمْ وَلاَ يُبَايِعُوهُمْ وَلاَ يُئْوُوهُمْ ‏.‏ قَالَ الزُّهْرِيُّ وَالْخَيْفُ الْوَادِي ‏.‏