It is narrated from Sayyiduna Rafi' bin Khadij (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The one appointed to collect zakah who acts justly is like one who fights in the way of Allah, until he returns to his home."
Hadith Referenceالمعجم الكبير للطبراني / باب الراء / 4283