Is the prayer of one who reads from the mushaf in the obligatory prayer valid?

Question:
Honorable Shaykh, may Allah grant you success. He says: Is the prayer of one who reads from the mushaf in the obligatory prayer valid?

Answer:
This is a great laziness. He reads, meaning he does not memorize anything from the Qur'an to pray with in the obligatory prayer. This is a great laziness. The scholars differ on whether one reads from the mushaf in the voluntary prayer or in the tarawih prayer, so how about in the obligatory prayer? So, it means a person reaches this level: he does not memorize anything from the Qur'an, not even the short surahs, and reads from the mushaf. Yes.