For example...

For example, methyl alcohol (also known as wood spirit) is not najis and is a valid commodity for trade because it is used for industrial solvents, and for making synthetic rubber, chemicals, rubbing alcohol, inks, dyes and stains, antifreeze and other similar products. Similarly, the alcohol found in perfumes is pure and permissible for use as well as trade. Animal Products i.

Pig and its byproduct it is haram to deal in pigs and their byproducts in all forms: even selling or serving pork to those who consider it permissible in their religion is not allowed. This prohibition also applies to delivering food items which have pork in them such as pizza, etc. However, selling, buying or using soaps made of pigs' fat is permissible; of course, it is najis and one must purify the hand or body after using that soap.

Similarly, selling, buying or using toothbrushes or paint brushes that contain bristles made from pig's hair is permissible except wherever ritual purity (taharat) is a condition. So if someone uses such a toothbrush, then the mouth will become najis, and it will become pure by taking the toothbrush out and getting rid of the remaining toothpaste from the mouth. ii. Animal products from an animal that was slaughtered Islamically (zibh): it is permissible to deal in such products. i.

Animal products from an animal that you know was not slaughtered Islamically : (a) Parts with no feeling (e.g., hair, feather, fur, bone, horn, beak, nail. and teeth): it is permissible to trade in them. (b) Parts with feelings (e.g., skin): it is not permissible to trade in them.[^2] iv. Animal products whose method of slaughtering is unknown or doubtful : (a) From Muslim merchant or Muslim market: it is permissible to trade in them.

(b) From a non-Muslim: • if there is a probability of Islamic zibh: it is permissible to trade in them; • if there is no probability of Islamic zibh: it is not permissible to trade in them.[^3] Other ‘Ayn Najis Other ‘ayn najis items (like human or animal stool, urine, blood, semen) can be a legitimate business commodity provided there is a reasonable use for them .

For example, the dung of farm animals can be used for the purpose of using it as manure; blood of animals for use as a dye, etc.; blood of human beings for transfusion into a patient who needs it. Mutanajjis items: Mutanajjis means an item that becomes najis by coming into contact with a wet 'ayn najis.