A teacher tells a learner:
• “Write the answer.” The teacher asks for an act to be done. This is Amr, a command.
• “Do not write yet.” The teacher asks the learner to refrain from that act. This is Nahi, prohibition.
The act in both examples is writing. What changes is the demand: in one, do it; in the other, refrain from it.
- Doing an Act or Refraining from It