Language:
كتاب الوصايا
55  
Wills and Testaments (Wasaayaa)
(18)
Chapter: The Statement of Allah Taa'la: "And when the relatives and the orphans and Al-Masakin are present at the time of division..."
(18)
بَابُ قَوْلِ اللَّهِ تَعَالَى: {وَإِذَا حَضَرَ الْقِسْمَةَ أُولُو الْقُرْبَى وَالْيَتَامَى وَالْمَسَاكِينُ فَارْزُقُوهُمْ مِنْهُ}
Sahih al-Bukhari 2759

Narrated Ibn `Abbas:

Some people claim that the order in the above Verse is cancelled, by Allah, it is not cancelled, but the people have stopped acting on it. There are two kinds of guardians (who are in charge of the inheritance): One is that who inherits; such a person should give (of what he inherits to the relatives, the orphans and the needy, etc.), the other is that who does not inherit (e.g. the guardian of the orphans): such a person should speak kindly and say (to those who are present at the time of distribution), "I can not give it to you (as the wealth belongs to the orphans).

حَدَّثَنَا مُحَمَّدُ بْنُ الْفَضْلِ أَبُو النُّعْمَانِ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ أَبِي بِشْرٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ إِنَّ نَاسًا يَزْعُمُونَ أَنَّ هَذِهِ الآيَةَ نُسِخَتْ، وَلاَ وَاللَّهِ مَا نُسِخَتْ، وَلَكِنَّهَا مِمَّا تَهَاوَنَ النَّاسُ، هُمَا وَالِيَانِ وَالٍ يَرِثُ، وَذَاكَ الَّذِي يَرْزُقُ، وَوَالٍ لاَ يَرِثُ، فَذَاكَ الَّذِي يَقُولُ بِالْمَعْرُوفِ، يَقُولُ لاَ أَمْلِكُ لَكَ أَنْ أُعْطِيَكَ‏.‏
Reference : Sahih al-Bukhari 2759
In-book reference : Book 55, Hadith 22
USC-MSA web (English) reference : Vol. 4, Book 51, Hadith 21
  (deprecated numbering scheme)