I say, and with God's help: The original ruling in the school is to recite from memory, so according to Abu Hanifa, the prayer is invalidated by reading from the mushaf, and it is disliked according to Abu Yusuf and Muhammad. Therefore, the practice in recitation is based on memorization, but the issue is disputed, and one should not abandon the best of standing and completing the recitation due to the existing juristic differences among the schools, and God knows best.