Praise be to Allah, Lord of the Worlds, The Beneficent, the Merciful. Master of the Day of Judgment.
“All the praises and thanks be to Allah, Who has sent down to His slave (Muhammad ﷺ ) the Book (the Quran), and has not placed therein any crookedness.” [Surah Al Kahf - 1]
Allah ﷻ makes it clear in the Quran that it could not have been revealed by anyone other than Him. He ﷻ says:
And this Quran is not such as could ever be produced by other than Allah (Lord of the heavens and the earth), but it is a confirmation of (the revelation) which was before it [i.e. the Taurat (Torah), and the Injeel (Gospel)], and a full explanation of the book (i.e. laws, decreed for mankind) – wherein there is no doubt – from the Lord of the ‘Alamin (mankind, jinn, and all that exists). [Surah Yunus - 37]
Allah ﷻ has spoken the Truth!
حَسْبِـيَ اللّهُ لا إلهَ إلاّ هُوَ عَلَـيهِ تَوَكَّـلتُ وَهُوَ رَبُّ العَرْشِ العَظـيم
سُبْحَانَ اللَّهِ وَبِحَمْدِهِ ، سُبْحَانَ اللَّهِ الْعَظِيمِ