Muhammad bin Yahya bin Habban said: Two men from the tribe of Ashja' informed me that Muhammad bin Maslamah al-Ansari (may Allah be pleased with him) used to come to them as a collector, and he would say to the owner of the wealth: Give me the zakah of your wealth. Then they would bring him whatever was fit to be given, and he would accept it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7661