والنهي نوعان: نهي عن الأفعال الحسية: كالزنا وشرب الخمر، والكذب والظلم
One class concerns sensory or external acts, such as unlawful sexual intercourse, drinking intoxicants, lying, and injustice.
ونهي عن التصرفات الشرعية
The other class concerns legally constituted acts and transactions, whose status as worship or effective legal dealings depends on the Sharia.
The first class can occur as a physical act independently of legal authorization. In the second, effects such as transfer of ownership or valid worship depend on legal recognition. Prohibition consequently requires different analysis in the two classes.