Al-Furqan 25:6

<h2>What the Disbelievers said about the Qur'an</h2><p>Allah tells us about the foolishness of the disbelievers' ignorant minds, when they said about the Qur'an:</p><p>إِنْ هَـذَا إِلاَّ إِفْكٌ</p><p>(This is nothing but a lie), meaning an untruth.</p><p>افْتَرَاهُ</p><p>(that he has invented,) meaning the Prophet .</p><p>وَأَعَانَهُ عَلَيْهِ قَوْمٌ ءَاخَرُونَ</p><p>(and others have helped him in it.) means, he asked other people to help him compile it. So Allah said:</p><p>فَقَدْ جَآءُوا ظُلْماً وَزُوراً</p><p>(In fact, they have produced an unjust wrong and a lie.) meaning, they are the ones who are telling a lie, and they know that it is false, for their own souls know that what they are claiming is not true.</p><p>وَقَالُواْ أَسَـطِيرُ الاٌّوَّلِينَ اكْتَتَبَهَا</p><p>(And they say: "Tales of the ancients which he has written down...") meaning, the ancients wrote them down, and he has copied it.</p><p>فَهِىَ تُمْلَى عَلَيْهِ</p><p>(and they are dictated to him) means, they are read or recited to him.</p><p>بُكْرَةً وَأَصِيلاً</p><p>(morning and afternoon. ) at the beginning and end of the day. Because this idea is so foolish and is so patently false, everyone knows that it is not true. It is known through Mutawatir reports and is a common fact that Muhammad ﷺ the Messenger of Allah never learned to read or write, …

Say (unto them, O Muhammad): He who knoweth the secret of the heavens and the earth hath revealed it. Lo! He ever is Forgiving, Merciful.

Say: "The (Qur'an) was sent down by Him who knows the mystery (that is) in the heavens and the earth: verily He is Oft-Forgiving, Most Merciful."

Say: "It (this Quran) has been sent down by Him (Allah) (the Real Lord of the heavens and earth) Who knows the secret of the heavens and the earth. Truly, He is Oft-Forgiving, Most Merciful."

Say, “It was revealed by He who knows the Secret in the heavens and the earth. He is always Forgiving and Merciful.”