Recite Surah Al-Fatihah silently

Q 1: Is it permissible for a Ma'mum (a person being led by an Imam in Prayer) to recite any Qur'anic Surah after Al-Fatihah or is the recitation of the Imam sufficient for him (Part No. 6; Page No. 414) whether in Sirri Salah (Prayer with subvocal recitation) or Jahri Salah (Prayer recited out loud)? I appreciate your advice.

A: If a person performs Salah (Prayer) behind an Imam in Jahri Salah, they should recite Al-Fatihah only. If they perform behind an Imam in a Sirri Salah, they should recite Al-Fatihah then follow it with another Surah or any verses of the Qur'an just in the first two Rak`ahs of the four-Rak`ahs Salah (Prayer consisting of four units).May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.