Eisa bin Talhah narrated that : Mu'adh had written to the Prophet to ask him about greens - which is "herbs" - so he (pbuh) said, "There is nothing due on them".
The Prophet Muhammad was known for his fairness and justice when it came to dealing with people from all walks of life, including those who were less fortunate than him financially. He taught us that we should not take advantage of someone else's lack of resources by imposing unfair taxes or other forms of financial burden upon them. Instead, we should strive to be generous and understanding towards those who may not have as much money as others do so that everyone can benefit from a fair system where everyone pays their dues without feeling like they are being taken advantage of financially.