The Messenger of Allah ﷺ said, "Let the collector of zakat depart from you well pleased with you."
حدثنا يزيد بن هارون أخبرنا داود عن عامر
قال رسول الله ﷺ ليصدر المصدق وهو عنكم راض
No references are available.
Its isnad is sahih. Dawud is Ibn Abu Hind, and Amir is Ibn Sharahil Shaybi. The hadith was narrated by Muslim, 2/757, no. 989, Abu Dawud, 2/106, no. 1589, Tirmidhi, 3/30, no. 647, and Nasai, 5/31, no. 2461.