Sayyiduna Jarir bin Abdullah (may Allah be pleased with him) said: the Messenger of Allah (peace and blessings be upon him) said: "No servant introduces a good practice that is acted upon after him except that he will have a reward equal to the reward of those who act upon it, without anything being reduced from their rewards. And no servant introduces an evil practice that is acted upon after him except that he will bear a burden of sin equal to the sin of those who act upon it, without anything being reduced from their sins."
And some Bedouins came and said: Your zakah collectors come to us and wrong us. He said: "Keep your zakah collectors pleased."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 2428