Abu Dawud
Zakat
Book Number: 003 / Hadith Number: 1581
Narated By Bashir ibn al-Khasasiyyah : (Ibn Ubayd said in the version of his tradition that his name was not Bashir, but (it was) the Apostle of Allah (pbuh) (who had) named him Bashir)
We said: (to the Apostle of Allah): The collectors of sadaqah collect more than is due; can we hide our property to that proportion? He replied: "No."