Al-Anfál 8:32 واذ قالوا اللهم ان كان هاذا هو الحق من عندك فامطر علينا حجارة من السماء او ايتنا بعذاب اليم ٣٢

The Quraysh claimed They can produce Something similar to the Qur'an

Allah describes the disbelief, transgression, rebellion, as well as misguided statements that the pagans of Quraysh used to utter when they heard Allah's Ayat being recited to them,

قَدْ سَمِعْنَا لَوْ نَشَآءُ لَقُلْنَا مِثْلَ هَـذَآ