Bulugh al-Maram, Book 4, Hadith 648 (In-Book)

Abu Rafi (RAA) narrated that The Messenger of Allah appointed a man from Bani Makhzum to collect the Zakah. The man said to Abu Rafi', ‘Accompany me so that you may get a share of it.' Abu Rafi, replied, ‘No! Not until I go to the Prophet and ask him’ He went to the Messenger of Allah and asked him, and the Prophet replied, “The client (slave) of a certain tribe are like (the members of the tribe) themselves and Zakah is not lawful for us.” Related by Ahmad, the three Imams, Ibn Khuzaimah and Ibn Hibban.

وَعَنْ أَبِي رَافِعٍ ‏- رضى الله عنه ‏- { أَنَّ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-بَعَثَ رَجُلًا عَلَى اَلصَّدَقَةِ مِنْ بَنِي مَخْزُومٍ, فَقَالَ لِأَبِي رَافِعٍ: اِصْحَبْنِي, فَإِنَّكَ تُصِيبُ مِنْهَا, قَالَ: حَتَّى آتِيَ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-فَأَسْأَلَهُ.‏ فَأَتَاهُ فَسَأَلَهُ, فَقَالَ: " مَوْلَى اَلْقَوْمِ مِنْ أَنْفُسِهِمْ, وَإِنَّا لَا تَحِلُّ لَنَا اَلصَّدَقَةُ " .‏ } رَوَاهُ أَحْمَدُ, وَالثَّلَاثَةُ, وَابْنُ خُزَيْمَةَ, وَابْنُ حِبَّانَ 1‏.‏ ‏1 ‏- صحيح.‏ رواه أحمد ( 6 / 10 )‏، وأبو داود ( 1650 )‏، والنسائي ( 5 / 107 )‏، والترمذي ( 657 )‏، وابن خزيمة ( 2344 )‏، وابن حبان ( 5 / 124 )‏.‏ وقال الترمذي: " حسن صحيح ".‏

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also referenced under: Book 4, Hadith 669 (English)