Quran 6:34 - ...there is NONE that can alter the words of Allah.
Quran 6:115 - NONE can alter His words,...
Quran 10:64 - NO CHANGE is there in the words of Allah.

 

Quran 2:79 - So woe to THOSE who write the "scripture" with their own hands, then say, "This is from Allah,"...


Quran 3:78 - And indeed, there is among them a PARTY who alter the Scripture with their TONGUES so you
may think it is from the Scripture, but it is not from the Scripture. And they say, "This is from Allah,"
but it is not from Allah. And they speak untruth about Allah while they know.

 

Sahih al-Bukhari (32:19), Vol. 4, Book of Beginning of Creation, Hadith 442
Narrated Ibn Abbas: Allah's Apostle said, "Gabriel read the Qur'an to me in one way (i.e. dialect) and I continued
asking him to read it in different ways till he read it in SEVEN different ways." Classification: Sahih (Authentic)

 

Quran 16:101 - And when We substitute a verse in place of a verse...

Quran 15:90 - Just as We had revealed [scriptures] to the separators
Quran 15:91 - Who have made the Qur'an into portions (parts / shreds / fragments).

 

Sahih al-Bukhari (4705), Vol. 6, Book of Prophetic Commentary on the Qur'an, Hadith 228
Narrated Ibn Abbas: Those who have made their Scripture into parts are the people of the Scripture who
divided it into portions and believed in a part of it and disbelieved the other. Classification: Sahih (Authentic)
SOURCE: https://muflihun.com/bukhari:4705

 

Sahih al-Bukhari (2685), Vol. 3, Book of Witnesses, Hadith 850
Narrated Ubaidullah bin Abdullah bin Utba: Ibn Abbas said, "O Muslims? How do you ask the people of the
Scriptures, though your Book (i.e. the Quran) which was revealed to His Prophet is the most recent information
from Allah and you recite it, the Book that has not been distorted? Allah has revealed to you that the people of
the scriptures have changed with their own HANDS what was revealed to them and they have said (as regards
their changed Scriptures): This is from Allah, in order to get some worldly benefit...
Classification: Sahih (Authentic), SOURCE: https://muflihun.com/bukhari:2685

 

Sahih al-Bukhari (7363) Vol. 9, Book of Holding Fast to the Qur'an and Sunnah, Hadith 461
Narrated Ubaidullah: Ibn 'Abbas said, "Why do you ask the people of the scripture about anything while your Book
(Quran) which has been revealed to Allah's Apostle is newer and the latest? You read it pure, undistorted
and unchanged, and Allah has told you that the people of the scripture (Jews and Christians) changed their
scripture and distorted it, and wrote the scripture with their own HANDS and said, 'It is from Allah,' to sell it
for a little gain. Classification: Sahih (Authentic), SOURCE: https://muflihun.com/bukhari:7363