It was narrated from Ihn Abi Rafi, from his father, that:

the Messenger of Allah appointed a man from Banu Makhzum to collect Sadaqah. Abu Rafi wanted to go with him, but the Messenger of Allah said: "The Sadaqah is not permissible for us, and the freed slave of a people is one of them."

أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا شُعْبَةُ، قَالَ حَدَّثَنَا الْحَكَمُ، عَنِ ابْنِ أَبِي رَافِعٍ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ ﷺ اسْتَعْمَلَ رَجُلاً مِنْ بَنِي مَخْزُومٍ عَلَى الصَّدَقَةِ فَأَرَادَ أَبُو رَافِعٍ أَنْ يَتْبَعَهُ فَقَالَ رَسُولُ اللَّهِ ﷺ " إِنَّ الصَّدَقَةَ لاَ تَحِلُّ لَنَا وَإِنَّ مَوْلَى الْقَوْمِ مِنْهُمْ " .