حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ الْبَرَاءَ، يَقُولُ لَمَّا صَالَحَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَهْلَ الْحُدَيْبِيَةِصَالَحَهُمْ عَلَى أَنْ لاَ يَدْخُلُوهَا إِلاَّ بِجُلْبَانِ السِّلاَحِ فَسَأَلْتُهُ مَا جُلْبَانُ السِّلاَحِ قَالَ الْقِرَابُ بِمَا فِيهِ ‏.‏
Translation
Al Bara’ (bin Azib) said When the Apostle of Allaah(ﷺ) concluded the treaty with the people of Al Hudaibiyyah, they stipulated that they (the Muslims) would not enter (Makkah) except with the bag of armament (julban al-silah). I asked what is julban al-silah? He replied

When the Messenger of Allah (ﷺ) made a treaty with the people of Al-Hudaybiyyah, he made a treaty with them on the condition that they would not enter it except with swords in sheaths. I asked him, 'What are the swords in sheaths?' He said, 'The scabbards with what is in them.'