وَقَالُوْا لَوْلَا نُزِّلَ عَلَيْهِ اٰيَةٌ مِّنْ رَّبِّهٖۗ قُلْ اِنَّ اللّٰهَ قَادِرٌ عَلٰٓى اَنْ يُّنَزِّلَ اٰيَةً وَّلٰكِنَّ اَكْثَرَهُمْ لَا يَعْلَمُوْنَ ( الأنعام: ٣٧ )
Wa qaaloo law laa nuzzila 'alaihi Aayatum mir Rabbih; qul innal laaha qaadirun 'alaaa ai yunazzila Aayatanw wa laakinna aksarahum laa ya'lamoon (al-ʾAnʿām 6:37)
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." (Al-An'am  : 37)
1 Mufti Taqi Usmani
They say, “Why is it that no sign (of our choice) has been sent down to him from his Lord?” Say, “Allah is surely powerful enough to send down a sign.” But most of them do not know.