What if the Quran was lifted from the Mushaf and our breast tomorrow?

(وَلَئِن شِئْنَا لَنَذْهَبَنَّ بِالَّذِي أَوْحَيْنَا إِلَيْكَ ثُمَّ لَا تَجِدُ لَكَ بِهِ عَلَيْنَا وَكِيلًا ﴿٨٦ And if We willed, We could surely do