Al-Ahzab (The Armies of Enemies)
Surah 33 · Verse 36
It does not befit a believing man or a believing woman, when Allah and His messenger have decided an affair, to have for themselves any choice in their affair, and he who disobeys Allah and His messenger, has indeed gone astray (into) clear error.
A believer is defined as a person who does not exercise his choice when Allah (SWT) and His messenger (PBH) have given a decision i.e. he does not go against the instructions contained in the Quran and Hadees for which he has to acquire the knowledge of Quran, Hadees and life of Prophet Muhammed (PBH).
