Hadith 5:712
Abu Usama narrated to us, from Hisham, from al-Hasan and Muhammad, that they both disliked that a man should buy anything from the charity of his wealth until it has been transferred from the possession of the charity collector.
حدثنا أبو أسامة عن هشام عن الحسن ومحمد أنهما كرها أن يشتري الرجل شيئا من صدقة ماله حتى يحول من عند المصدق