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 3145

Narrated `Amr bin Taghlib:

Allah's Messenger (ﷺ) gave (gifts) to some people to the exclusion of some others. The latter seemed to be displeased by that. The Prophet (ﷺ) said, "I give to some people, lest they should deviate from True Faith or lose patience, while I refer other people to the goodness and contentment which Allah has put in their hearts, and `Amr bin Taghlib is amongst them." `Amr bin Taghlib said, "The statement of Allah's Apostle is dearer to me than red camels." Narrated Al-Hasan: `Amr bin Taghlib told us that Allah's Messenger (ﷺ) got some property or some war prisoners and he distributed them in the above way (i.e. giving to some people to the exclusion of others) .

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا جَرِيرُ بْنُ حَازِمٍ، حَدَّثَنَا الْحَسَنُ، قَالَ حَدَّثَنِي عَمْرُو بْنُ تَغْلِبَ ـ رضى الله عنه ـ قَالَ أَعْطَى رَسُولُ اللَّهِ صلى الله عليه وسلم قَوْمًا وَمَنَعَ آخَرِينَ، فَكَأَنَّهُمْ عَتَبُوا عَلَيْهِ فَقَالَ ‏ "‏ إِنِّي أُعْطِي قَوْمًا أَخَافُ ظَلَعَهُمْ وَجَزَعَهُمْ، وَأَكِلُ أَقْوَامًا إِلَى مَا جَعَلَ اللَّهُ فِي قُلُوبِهِمْ مِنَ الْخَيْرِ وَالْغِنَى، مِنْهُمْ عَمْرُو بْنُ تَغْلِبَ ‏"‏‏.‏ فَقَالَ عَمْرُو بْنُ تَغْلِبَ مَا أُحِبُّ أَنَّ لِي بِكَلِمَةِ رَسُولِ اللَّهِ صلى الله عليه وسلم حُمْرَ النَّعَمِ‏.‏ وَزَادَ أَبُو عَاصِمٍ عَنْ جَرِيرٍ قَالَ سَمِعْتُ الْحَسَنَ يَقُولُ حَدَّثَنَا عَمْرُو بْنُ تَغْلِبَ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أُتِيَ بِمَالٍ أَوْ بِسَبْىٍ فَقَسَمَهُ‏.‏ بِهَذَا‏.‏
Reference : Sahih al-Bukhari 3145
In-book reference : Book 57, Hadith 53
USC-MSA web (English) reference : Vol. 4, Book 53, Hadith 373
  (deprecated numbering scheme)