وَقُلِ ٱلۡحَقُّ مِن رَّبِّكُمۡۖ فَمَن شَآءَ فَلۡيُؤۡمِن وَمَن شَآءَ فَلۡيَكۡفُرۡۚ إِنَّآ أَعۡتَدۡنَا لِلظَّٰلِمِينَ نَارًا أَحَاطَ بِهِمۡ سُرَادِقُهَاۚ وَإِن يَسۡتَغِيثُواْ يُغَاثُواْ بِمَآءٖ كَٱلۡمُهۡلِ يَشۡوِي ٱلۡوُجُوهَۚ بِئۡسَ ٱلشَّرَابُ وَسَآءَتۡ مُرۡتَفَقًا

Wa qulil haqqu mir Rabbikum faman shaaa'a falyu'minw wa man shaaa'a falyakfur; innaaa a'tadnaa lizzaalimeena Naaran ahaata bihim suraadiquhaa; wa iny yastagheesoo yughaasoo bimaaa'in kalmuhli yashwil wujooh' bi'sash-sharaab; wa saaa'at murtafaqaa

Say, "The truth is from your Lord": Let him who will believe, and let him who will, reject (it): for the wrong-doers We have prepared a Fire whose (smoke and flames), like the walls and roof of a tent, will hem them in: if they implore relief they will be granted water like melted brass, that will scald their faces, how dreadful the drink! How uncomfortable a couch to recline on!

— Al-Kahf (ٱلْكَهْف), 18:29