There is this substance called spice in the U.S. And it is sold as incense. But it has the same chemicals as marijuana. Customers use it in order to get high of it. I see a lot of the Muslim brothers selling it in the stores. When I tell them this is haram, they reply “No, we sell it as incense and it is up to the people to use it however they like”. My Question is, is it haram to sell these kinds of things.