In Islam, things considered dirty (najis) require purification before prayer and other religious acts. These substances vary slightly based on different schools of Islamic jurisprudence.
According to the Shafi'i school of Sunni Islam, a prominent perspective, the following are considered impure:
- Wine and other intoxicating beverages: Alcohol is generally considered impure.
- Dogs: The entire dog is considered impure.
- Swine (Pigs): The entire pig is considered impure.
- Blood: All types of blood are considered impure.
- Excrements: This includes urine and feces of humans and animals whose meat is forbidden to eat.
- Milk of animals whose meat Muslims are not allowed to eat: This means milk from animals like pigs and dogs would be considered impure.
It's important to note that these are specific to the Shafi'i school of thought. Other schools may have slightly different interpretations regarding what constitutes impurity and the methods of purification. For example, some schools may differentiate between the saliva of a dog and the dog itself. They also have different views on the types of blood considered impure. It is vital to consult religious scholars from the school of thought one follows for detailed guidance.