﴿ وَقَالُوا۟ لَوْلَآ أُنزِلَ عَلَيْهِ ءَايَٰتٌۭ مِّن رَّبِّهِۦ ۖ قُلْ إِنَّمَا ٱلْءَايَٰتُ عِندَ ٱللَّهِ وَإِنَّمَآ أَنَا۠ نَذِيرٌۭ مُّبِينٌ ﴾

“And yet they say, “Why have no miraculous signs ever been bestowed upon him from on high by his Sustainer?” Say: “Miracles are in the power of God alone; and as for me - I am but a plain warner.””

And they namely the disbelievers of Mecca say ‘Why has not some sign been sent down to him to Muhammad (s) from his Lord?’ āyatun ‘sign’ a variant reading has āyātun ‘signs’ such as the she-camel of Sālih or the staff of Moses or the Table of Jesus. Say to them ‘Signs are only with God and He sends them down as He will and I am only a plain warner’ making manifest my warning of the punishment of the Fire for disobedient people.