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 3149

Narrated Anas bin Malik:

While I was walking with the Prophet (ﷺ) who was wearing a Najrani outer garment with a thick hem, a bedouin came upon the Prophet (ﷺ) and pulled his garment so violently that I could recognize the impress of the hem of the garment on his shoulder, caused by the violence of his pull. Then the bedouin said, "Order for me something from Allah's Fortune which you have." The Prophet (ﷺ) turned to him and smiled, and ordered that a gift be given to him.

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا مَالِكٌ، عَنْ إِسْحَاقَ بْنِ عَبْدِ اللَّهِ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه قَالَ كُنْتُ أَمْشِي مَعَ النَّبِيِّ صلى الله عليه وسلم وَعَلَيْهِ بُرْدٌ نَجْرَانِيٌّ غَلِيظُ الْحَاشِيَةِ، فَأَدْرَكَهُ أَعْرَابِيٌّ فَجَذَبَهُ جَذْبَةً شَدِيدَةً، حَتَّى نَظَرْتُ إِلَى صَفْحَةِ عَاتِقِ النَّبِيِّ صلى الله عليه وسلم قَدْ أَثَّرَتْ بِهِ حَاشِيَةُ الرِّدَاءِ مِنْ شِدَّةِ جَذْبَتِهِ، ثُمَّ قَالَ مُرْ لِي مِنْ مَالِ اللَّهِ الَّذِي عِنْدَكَ‏.‏ فَالْتَفَتَ إِلَيْهِ، فَضَحِكَ ثُمَّ أَمَرَ لَهُ بِعَطَاءٍ‏.‏
Reference : Sahih al-Bukhari 3149
In-book reference : Book 57, Hadith 57
USC-MSA web (English) reference : Vol. 4, Book 53, Hadith 377
  (deprecated numbering scheme)