The biggest proof of the Qur’an’s “no nonsense authenticity”—other than its total immutable and contradiction-free truth (4:82)---is that it literally BUSTS all mullah ideas of Hadith and Sunnah! It uses the word “Hadith” multiple times but never ever in the same sense as the mullahs teach the imbeciles. Same thing with “Sunnah”—the Qur’an never uses the word “Sunnah” in the sense of ‘actions/practice of the Prophet.
Had Qur’an been not protected by Allah Himself (15:9), Mullahs would have changed it beyond recognition centuries ago. There are lots of verses in the Qur’an that mullahs would have loved to eliminate—verses of tolerance (2:62, 5:69, 2:111-112, 5:48 etc) or verses like 33:43 that flies in the face of those who believe in the “darood”. Not only that, mullahs would have inserted the “verse of the stoning” in the Qur’an that they believe was eaten by a goat (I am not joking). They somehow managed to take this verse out of the goat’s stomach, and have been itching to introduce it into the Qur’an ever since. But God would not allow them to.
Sunni mullahs would have inserted the verses of the Dajjal and 2nd coming of Jesus in the Qur’an. They would also have inserted many “miracles” of the Prophet. Shi’a ayatollahs would have inserted Al, Hasan, and Hussain in the Qur’an and cursed Abu Bakr and Umar!!! They would have deleted “Ahl bayt” phrase from the Qur’an that specifically uses this phrase ONLY for the wives of the Prophet (pbuh).
BUT….Allah saved the Qur’an from these manipulating Shaitans we all know as mullahs. It is certainly perfectly PRESERVED in its pristine form because of strong built-in INTERNAL evidence—not because some Uthman compiled it or Hafsa safe-stored it…blah blah blah.
The Qur’an in its entirety is “Sahih”—no part of the Qur’an is “weak (dhaeef)” or “”broken”, “fabricated (maudoo)” etc. You can’t say the same thing about Bukhari’s machinations we know as fabricated “Hadith” and “Sunnah”.