Is the prayer in which the opening chapter of the Book is not recited considered invalid or deficient?

The Shaykh : The question asks: Is the prayer in which the Mother of the Book is not recited considered invalid or deficient? And if one is behind the imam, should he recite it in accordance with the narrations encouraging its recitation, or should he leave off the recitation in accordance with the saying of the Messenger: , and his saying: ?
Answer: There is a distinction between the quiet prayer and the loud prayer. If the follower hears the recitation of the imam in the loud prayer, he should not recite anything of the Qur'an, nor the opening chapter of the Book; because of the two narrations mentioned in the question, to which is added the saying of He — Blessed and Exalted is He: . This is the most just and moderate of the schools of jurisprudence; because it commands recitation in the quiet prayer and commands listening in the loud prayer, and in that is the reconciliation of the narrations coming in this issue. The research into this is long, and this amount of answer is sufficient for us.