Q 2: What is the Islamic ruling on
subvocal recitations during the first two Rak`ahs (units of prayer) of Maghrib (Sunset) and `Isha' (Night) Prayers?
It has been authentically reported that the Prophet (peace be upon him) used to recite the Qur'an aloud in the two Rak`ahs of Fajr (Dawn) Prayer and the first two Rak`ahs of Maghrib (Sunset) and `Isha' (Night) Prayers. Loud recitation during these prayers is Sunnah (action following the teachings of the Prophet). The Prophet's Ummah (nation) is obliged to follow in his footsteps, as Allah (Exalted be He) says:
Indeed in the Messenger of Allâh (Muhammad صلى الله عليه وسلم) you have a good example to follow for him who hopes for (the Meeting with) Allâh and the Last Day, and remembers Allâh much.
It is also authentically reported that the Prophet (peace be upon him) said:
Pray as you have seen me praying.
If, however, a person recites the Qur'an in a low voice during a Jahri Salah (Prayer recited out loud), they will be doing an act contradicting the Sunnah (whatever reported from the Prophet) though their prayer is not nullified.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.