The Importance of Knowing What You're Selling

Back in the day these types of sales were haram, now today it's the risk of those types of transactions are very minimal. If a person is to buy and sell something, that they have absolutely no knowledge of what they are going to be buying Then it's not permissible for them to buy that thing,. It's also not permissible for you to sell that thing to them Obviously we are not trained like that, but this is called Beit al-Mulabha, and BeitAlMulabh made these things haram. They are certain Akham with regards to what we can sense and what we can feel that make things halal and haram The Prophet �