Okay kiddo, do you know what a muhtasib is? It's someone who makes sure that people follow the rules in their community, kind of like a police officer but for different things.
For example, a muhtasib might make sure that people aren't cheating or being mean to each other in a marketplace. They might also make sure that people aren't littering or doing other things that are bad for the environment.
In some places, the muhtasib might work for the government and have official powers to punish people who break the rules. But in other places, they might just be respected members of the community who help keep everyone in line.
Overall, a muhtasib is someone who cares about their community and wants to make sure that everyone is happy and safe.