Musnad Ahmad Hadith 19206

It is narrated from Jarir (may Allah be pleased with him) that the Holy Prophet (ﷺ) said: Whoever introduces a good practice in Islam, he will have the reward of that act and also the reward of those who act upon it after him, and nothing will be diminished from their rewards. And whoever introduces a bad practice in Islam, he will bear its sin and also the sin of those who act upon it after him, and nothing will be diminished from their sins. The narrator says that once some villagers came to the Holy Prophet (ﷺ) and said, "O Messenger of Allah! The people who come to us from your side to collect zakat oppress us." The Holy Prophet (ﷺ) said, "Send him back pleased." They said, "Even if he oppresses us?" The Holy Prophet (ﷺ) again said, "Send him back pleased." Since I heard this hadith, I have always sent back the one who comes to me to collect zakat in a pleased manner.