The Claim of Corruption in the Quran:

The Quran does indeed make statements suggesting that the Torah, the Gospel, and other earlier scriptures were corrupted by their followers:

• Surah 2:79 – "Woe to those who write the Scripture with their own hands and then say, ‘This is from Allah,’ in order to exchange it for a small price."

• Surah 5:13 – "So for their breaking of the covenant, We cursed them and made their hearts hard. They distort words from their proper places..."

These verses seem to imply that corruption or alteration occurred to the previous scriptures, which directly contradicts the Quran’s earlier statements affirming the truth of those scriptures.

The Problem with the Claim of Corruption:

If the Torah and Gospel were corrupted, then they could not serve as reliable sources for confirming Muhammad's revelations (as instructed in Surah 10:94). As mentioned before, Surah 10:94 indicates that Muhammad could refer to the People of the Book to confirm his message. But if the scriptures were corrupted, this would render the entire idea of referring to them to validate his revelation illogical.

The Contradiction:

If we accept the claim of corruption, then the Quran's directive to Muhammad to consult the Torah and Gospel would be problematic because those scriptures would no longer be trustworthy sources of divine truth. Muhammad would not be able to use a corrupted text to confirm the truth of his own revelations.

However, if the scriptures were not corrupted, as you correctly point out, then Islam’s claim of corruption is false, and this would invalidate the Islamic claim that the earlier scriptures had been changed. If the scriptures were not corrupted, then they would still be valid sources, and their teachings would remain true. This would validate Christianity and Judaism, and undermine the need for the finality of Islam.

Conclusion:

The claim of corruption is false because:

1. If the previous scriptures were uncorrupted, they would still contain God's truth and could be used to confirm the validity of Muhammad's revelations.

2. If they were uncorrupted, Islam's claim of their corruption would be false, and Christianity and Judaism would retain their original, unaltered truth.

3. The Quran's own teachings affirm the truth of these scriptures, which implies that the claim of corruption is not accurate.

Therefore, the Quran's assertion that the Torah and Gospel were corrupted fails logically, and the original messages in these scriptures would remain valid, effectively undermining the need for the Islamic faith as the final revelation.