أَفَلَا يَتَدَبَّرُونَ ٱلْقُرْءَانَ ۚ وَلَوْ كَانَ مِنْ عِندِ غَيْرِ ٱللَّهِ لَوَجَدُوا۟ فِيهِ ٱخْتِلَـٰفًا كَثِيرًا

Then do they not reflect upon the Qur’ān?1 If it had been from [any] other than Allāh, they would have found within it much contradiction.

النساء 82

لَقَدْ كَانَ فِى قَصَصِهِمْ عِبْرَةٌ لِّأُو۟لِى ٱلْأَلْبَـٰبِ ۗ مَا كَانَ حَدِيثًا يُفْتَرَىٰ وَلَـٰكِن تَصْدِيقَ ٱلَّذِى بَيْنَ يَدَيْهِ وَتَفْصِيلَ كُلِّ شَىْءٍ وَهُدًى وَرَحْمَةً لِّقَوْمٍ يُؤْمِنُونَ

There was certainly in their stories a lesson for those of understanding. Never was it [i.e., the Qur’ān] a narration invented, but a confirmation of what was before it and a detailed explanation of all things and guidance and mercy for a people who believe.

يوسف 111

وَلَتَعْلَمُنَّ نَبَأَهُۥ بَعْدَ حِينٍۭ

And you will surely know [the truth of] its information after a time."

ص 88

هَلْ فِى ذَٰلِكَ قَسَمٌ لِّذِى حِجْرٍ

Is there [not] in [all] that an oath [sufficient] for one of perception?1

الفجر 5