Allah swears to the Greatness of the Qur'an

The usage of La (in Fala) is not an extra character without meaning, as some of the scholars of Tafsir say. Rather it is used at the beginning of an oath when the oath is a negation. This is like when `A'ishah, may Allah be pleased with her said, "La by Allah! Allah's Messenger ﷺ did not touch any woman's hand at all. So in this way, the meaning is, "No! I swear by the Mawaqi` of the stars. The matter is not as you people claim - about the Qur'an - that it is a result of magic or sorcery, rather it is an Honorable Qur'an." Ibn Jarir said, "Some of the scholars of the Arabic language said that the meaning of:

فَلاَ أُقْسِمُ

The phrase كِتَابٍ مَّكْنُونٍ 'a protected book' refers to lawh mahfuz [ i.e. the Preserved Tablet ].