When Messenger of Allah ﷺ concluded a peace treaty with the people of Hudaibiya, ʿAli bin Abu Talib wrote the document and he mentioned in it, "Muhammad, Messenger of Allah ﷺ ." The pagans said, "Don't write: 'Muhammad, Messenger of Allah ﷺ', for if you were an apostle we would not fight with you." Allah's Apostle asked ʿAli to rub it out, but ʿAli said, "I will not be the person to rub it out." Messenger of Allah ﷺ rubbed it out and made peace with them on the condition that the Prophet ﷺ and his companions would enter Mecca and stay there for three days, and that they would enter with their weapons in cases.  

لَمَّا صَالَحَ رَسُولُ اللَّهِ ﷺ أَهْلَ الْحُدَيْبِيَةِ كَتَبَ عَلِيٌّ بَيْنَهُمْ كِتَابًا فَكَتَبَ مُحَمَّدٌ رَسُولُ اللَّهِ ﷺ فَقَالَ الْمُشْرِكُونَ لاَ تَكْتُبْ مُحَمَّدٌ رَسُولُ اللَّهِ لَوْ كُنْتَ رَسُولاً لَمْ نُقَاتِلْكَ فَقَالَ لِعَلِيٍّ امْحُهُ فَقَالَ عَلِيٌّ مَا أَنَا بِالَّذِي أَمْحَاهُ فَمَحَاهُ رَسُولُ اللَّهِ ﷺ بِيَدِهِ وَصَالَحَهُمْ عَلَى أَنْ يَدْخُلَ هُوَ وَأَصْحَابُهُ ثَلاَثَةَ أَيَّامٍ وَلاَ يَدْخُلُوهَا إِلاَّ بِجُلُبَّانِ السِّلاَحِ فَسَأَلُوهُ مَا جُلُبَّانُ السِّلاَحِ فَقَالَ الْقِرَابُ بِمَا فِيهِ  

'Ali b. Abu Talib penned the treaty between the Prophet ﷺ and the polytheists on the Day of Hudaibiya. He wrote: This is what Muhammad, the Messenger of Allah, has settled. They (the polytheists) said: Do not write words" the Messenger of Allah". If we knew that you were the Messenger of Allah, we would not fight against you. The Prophet ﷺ said to 'Ali: Strike out these words. He (Ali) said: I am not going to strike them out. So the Prophet ﷺ struck them out with his own hand. The narrator said that the conditions upon which the two sides had agreed included that the Muslims would enter Mecca (next year) and would stay there for three days, and that they would not enter bearing arms except in their sheaths or bolsters.  

سَمِعْتُ الْبَرَاءَ بْنَ عَازِبٍ يَقُولُ كَتَبَ عَلِيُّ بْنُ أَبِي طَالِبٍ الصُّلْحَ بَيْنَ النَّبِيِّ ﷺ وَبَيْنَ الْمُشْرِكِينَ يَوْمَ الْحُدَيْبِيَةِ فَكَتَبَ هَذَا مَا كَاتَبَ عَلَيْهِ مُحَمَّدٌ رَسُولُ اللَّهِ فَقَالُوا لاَ تَكْتُبْ رَسُولُ اللَّهِ فَلَوْ نَعْلَمُ أَنَّكَ رَسُولُ اللَّهِ لَمْ نُقَاتِلْكَ فَقَالَ النَّبِيُّ ﷺ لِعَلِيٍّ امْحُهُ فَقَالَ مَا أَنَا بِالَّذِي أَمْحَاهُ فَمَحَاهُ النَّبِيُّ ﷺ بِيَدِهِ قَالَ وَكَانَ فِيمَا اشْتَرَطُوا أَنْ يَدْخُلُوا مَكَّةَ فَيُقِيمُوا بِهَا ثَلاَثًا وَلاَ يَدْخُلُهَا بِسِلاَحٍ إِلاَّ جُلُبَّانَ السِّلاَحِ قُلْتُ لأَبِي إِسْحَاقَ وَمَا جُلُبَّانُ السِّلاَحِ قَالَ الْقِرَابُ وَمَا فِيهِ  

[Machine] I heard Al-Bara' ibn 'Azib say, when the Prophet ﷺ made a truce with the people of Hudaybiyah, 'Ali wrote a document between them. He wrote "Muhammad, Messenger of Allah", and the polytheists said, "Do not write 'Muhammad, Messenger of Allah,' if you were the Messenger of Allah, we would not fight you". So he said to 'Ali, "Erase it." 'Ali said, "I am not the one who will erase it." So the Prophet ﷺ erased it with his own hand. He agreed with them that they would enter for three days and that only those with weapons would enter. So I asked, "What does 'weapons' mean?" He said, "The sheaths (carrying case) with what is in it."  

سَمِعْتُ الْبَرَاءَ بْنَ عَازِبٍ يَقُولُ لَمَّا صَالَحَ رَسُولُ اللهِ ﷺ أَهْلَ الْحُدَيْبِيَةِ كَتَبَ عَلِيٌّ كِتَابًا بَيْنَهُمْ وَقَالَ فَكَتَبَ مُحَمَّدٌ رَسُولُ اللهِ فَقَالَ الْمُشْرِكُونَ لَا تَكْتُبْ مُحَمَّدٌ رَسُولُ اللهِ وَلَوْ كُنْتَ رَسُولَ اللهِ لَمْ نُقَاتِلْكَ ‍ قَالَ فَقَالَ لِعَلِيٍّ امْحُهُ قَالَ فَقَالَ مَا أَنَا بِالَّذِي أَمْحَاهُ فَمَحَاهُ رَسُولُ اللهِ ﷺ بِيَدِهِ قَالَ وَصَالَحَهُمْ عَلَى أَنْ يَدْخُلَ هُوَ وَأَصْحَابُهُ ثَلَاثَةَ أَيَّامٍ وَلَا يَدْخُلُوهَا إِلَّا بِجُلُبَّانِ السِّلَاحِ فَسَأَلْتُهُ مَا جُلُبَّانُ السِّلَاحِ؟ قَالَ الْقِرَابُ بِمَا فِيهِ