Is it permissible to read directly from the mushaf in prayer, whether obligatory or voluntary?

Question:
Is it permissible to read directly from the mushaf in prayer, whether obligatory or voluntary?

Answer:
In the obligatory prayer, there is no need to read from the mushaf; because it is sufficient to recite whatever is easy of the Qur'an, from the short surahs or from some verses, or even if one does not recite anything other than al-Fatihah, his prayer is valid; because reciting more than al-Fatihah from the Qur'an is a recommended practice (sunnah), and not obligatory.
As for voluntary prayers, if a person wants to lengthen the recitation and does not have much of the Qur'an memorized, there is no harm in reading from the mushaf, or if he wants to recite the entire Qur'an and go through it in voluntary prayer and in the night prayer, there is no harm in reading from the mushaf.