21:5
بَلْ قَالُوٓا۟ أَضْغَـٰثُ أَحْلَـٰمٍۭ بَلِ ٱفْتَرَىٰهُ بَلْ هُوَ شَاعِرٌ فَلْيَأْتِنَا بِـَٔايَةٍ كَمَآ أُرْسِلَ ٱلْأَوَّلُونَ
bal qālū aḍghāthu aḥlāmin bali if'tarāhu bal huwa shāʿirun falyatinā biāyatin kamā ur'sila l-awalūna
Some say, ‘Muddled dreams’; others, ‘He made it up’; yet others, ‘He is just a poet, let him show us a sign as previous messengers did.’
Nay, they say: "These (revelations of the Qur’ân which are revealed to Muhammad صلى الله عليه وسلم) are mixed up false dreams! Nay, he has invented them! - Nay, he is a poet! Let him then bring us an Ayâh (sign as a proof) like the ones (Prophets) the former were sent (with)!"