As mentioned above...
As mentioned above, of one the significant interpretations for detached letters is that the Most Glorious Qur’an consists of letters of alphabet reflecting the truth that God Almighty Who revealed the Holy Qur’an is Omnipotent and Omniscient such that He created such exquisite system out of such simple means. However, there are other interpretations for detached letters regarding which one may refer to the openings of Chapters 2, 3, 7, and HM Chapters.
Some Qur’anic exegets maintain that Qaf alludes to a number of Allah’s Most Beauteous Names, e.g. the Omnipotent (Qadir) and the Self-Existing (Qayyum). From amongst the evidence alluding to the point that the detached letter indicates the Glory of the Holy Qur’an is that an oath is taken to the Glorious Qur’an immediately following the letter: “Qaf. By the Glorious Qur’an.” The Arabic word majid (“glorious, illustrious, exalted”) derives from m-j-d (“to be glorious, illustrious, exalted”).
The titled majid is applied to the Holy Qur’an since it possesses glory without bounds and it wholly deserves the title in terms of contents, beauteous form, exquisite Injunctions, and invigorating and didactic plans. Numerous possibilities have occurred to Qur’anic exegets as to mentioning the oath and its object. Taking into account the following Qur’anic Verses, it seems that the object is the question of the Noble Prophet’s (S) Prophethood or Resurrection.
Taking an oath in the following Verse; (“Nay, they wonder that there has come to them a warner from amongst themselves. Therefore, the disbelievers said [regarding the news of Resurrection]: ‘This is a strange thing!’”) may reflect disbelievers’ wonder as to the Noble Prophet’s (S) chiefship and leadership as someone who was raised amongst them. The blessed Verse is saying that God Almighty revealed the Holy Qur’an to substantiate his Prophethood and remove their wonder.
“When we are dead and have become dust [shall we be resurrected?] That is a far return.” 4.