Nataq is speech and the Messenger did not use sign language to dictate the Quran to the people!
Nataq is Speech with words that makes meanings clear, so only humans can make things clear when speaking so the Quran is meaningless and ambiguous!
Creed of Abraham has been discussed and is none other than following pure monotheism.
Making up stories about things not mentioned in Quran, this happened, that happened, the close encounter of the third kind, is not following Quran but adding to it with outside beliefs.
The hadith say the Messenger was a walking Quran so now I am giving up the Quran because I reject the hadith! NOT. I reject all hadith, not because most are false and some may be true, but because the Quran is sufficient for me.
You mentioned 53:10 but does this say ‘we told you about Eman and how to pray a ritualised prayer so teach the people and I will not have to put the details in the Quran and have them follow YOU for eternity’!!!?
53:6 The Owner of authority and wisdom established him (the Prophet).
53:7 At the highest horizon, [81:23]
53:8 Of human wisdom and knowledge as he drew near and approached (the point where the human intellect comes to a halt),
53:9 Till he was but two bow-lengths away, or even closer. [The Divine will and the will of the Messenger merged together, like the two of you join your bows as a token of friendship. 8:17]
53:10 And thus He revealed to His servant what He revealed.
53:11 And never did he find contrary to reason what he learned. [2:285, 6:164. Raa = Saw, learned, observed, took to heart]
53:12 Will you, then, contend with him concerning what he has learned (that you have not)?
53:13 He has recalled the revelation (on his heart) once again. [2:185]
53:14 At the Ultimate Mark. [Sidratil muntaha = The last Lote-tree = The state of bewilderment = The point where the human intellect is left with nothing but astonishment!]
53:15 Near the Garden of Abode. [The revelation tells the Messenger how to establish a Paradise on earth]
53:16 Overwhelming is the spectacle at the overwhelming Ultimate Mark!
53:17 Yet, his sight wavered not and wandered not.
53:18 He has seen the great signs of his Lord. [The shackles of mental and physical bondage will be broken and humanity will emerge from darkness to light 7:157, 17:1, 20:23-24]