Language:
كتاب فرض الخمس
57  
One-fifth of Booty to the Cause of Allah (Khumus)
(19)
Chapter: What the Prophet saws used to give to those Muslims whose faith was not so firm
(19)
بَابُ مَا كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُعْطِي الْمُؤَلَّفَةَ قُلُوبُهُمْ وَغَيْرَهُمْ مِنَ الْخُمُسِ وَنَحْوِهِ
Sahih al-Bukhari 3148

Narrated Jubair bin Mut`im:

That while he was with Allah's Messenger (ﷺ) who was accompanied by the people on their way back from Hunain, the bedouins started begging things of Allah's Messenger (ﷺ) so much so that they forced him to go under a Samura tree where his loose outer garment was snatched away. On that, Allah's Messenger (ﷺ) stood up and said to them, "Return my garment to me. If I had as many camels as these trees, I would have distributed them amongst you; and you will not find me a miser or a liar or a coward."

حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللَّهِ الأُوَيْسِيُّ، حَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعْدٍ، عَنْ صَالِحٍ، عَنِ ابْنِ شِهَابٍ، قَالَ أَخْبَرَنِي عُمَرُ بْنُ مُحَمَّدِ بْنِ جُبَيْرِ بْنِ مُطْعِمٍ، أَنَّ مُحَمَّدَ بْنَ جُبَيْرٍ، قَالَ أَخْبَرَنِي جُبَيْرُ بْنُ مُطْعِمٍ، أَنَّهُ بَيْنَا هُوَ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم وَمَعَهُ النَّاسُ مُقْبِلاً مِنْ حُنَيْنٍ عَلِقَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم الأَعْرَابُ يَسْأَلُونَهُ حَتَّى اضْطَرُّوهُ إِلَى سَمُرَةٍ، فَخَطِفَتْ رِدَاءَهُ، فَوَقَفَ رَسُولُ اللَّهِ صلى الله عليه وسلم فَقَالَ ‏ "‏ أَعْطُونِي رِدَائِي، فَلَوْ كَانَ عَدَدُ هَذِهِ الْعِضَاهِ نَعَمًا لَقَسَمْتُهُ بَيْنَكُمْ، ثُمَّ لاَ تَجِدُونِي بَخِيلاً وَلاَ كَذُوبًا وَلاَ جَبَانًا ‏"‏‏.‏
Reference : Sahih al-Bukhari 3148
In-book reference : Book 57, Hadith 56
USC-MSA web (English) reference : Vol. 4, Book 53, Hadith 376
  (deprecated numbering scheme)