The Ruling on Omitting the Audible Recitation in the Audible Prayers and the Prostration of Forgetfulness

Question:
Honorable Shaykh, if one omits the audible recitation in the audible prayers, does he perform the prostration of forgetfulness? And if he did so intentionally, does he have to make up the prayer?

Answer:
The prayer is not invalidated because the audible recitation is a recommended practice (sunnah). Since the audible recitation is a recommended practice, if one prays at night quietly without reciting audibly, his prayer is valid, but he has left a recommended practice. If he recites audibly during the day and leaves the quiet recitation, his prayer is valid, but he has left a recommended practice, which is the quiet recitation. If one omits the audible or quiet recitation out of forgetfulness, it is recommended for him to perform the prostration of forgetfulness, because if one omits a recommended practice of the prayer out of forgetfulness, it is recommended for him to perform the prostration of forgetfulness. As for the prostration of forgetfulness for omitting an obligatory act, or for adding or subtracting in the prayer, it is obligatory. As for omitting a recommended practice, it is recommended. Yes.