وَقالوا لَولا نُزِّلَ عَلَيهِ آيَةٌ مِن رَبِّهِ ۚ قُل إِنَّ اللَّهَ قادِرٌ عَلىٰ أَن يُنَزِّلَ آيَةً وَلـٰكِنَّ أَكثَرَهُم لا يَعلَمونَ

And they say, "Why has a sign not been sent down to him from his Lord?" Say, "Indeed, Allah is Able to send down a sign, but most of them do not know."