What is the ruling on repeating the recitation of Surat Al-Fatihah twice in a single rak'ah? And is uttering "Ameen" part of Al-Fatihah? And is uttering "Ameen" outside of prayer the same as inside it? And what is the ruling on such a prayer? And does the Imam bear sin if he believes that Al-Fatihah is just like any other surah?

1. Repeating Al-Fatihah in a single unit of prayer (rak'ah) does not invalidate the prayer.

2. Saying "Ameen" is not part of Al-Fatihah; rather, it is a supplication meaning "O Allah, answer."

3. Saying "Ameen" is a Sunnah after finishing Al-Fatihah, both inside and outside of prayer, and it is more emphasized in prayer.

4. Al-Fatihah is the greatest Surah in the Qur'an, and the Imam is not sinful for being unaware of its merits, as he is not obligated to learn these virtues.