وَقَالُواْ لَوْلاَ نُزِّلَ عَلَيْهِ آيَةٌ مِّن رَّبِّهِ قُلْ إِنَّ اللّهَ قَادِرٌ عَلَى أَن يُنَزِّلٍ آيَةً وَلَكِنَّ أَكْثَرَهُمْ لاَ يَعْلَمُونَ
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سورة الأنعام
(6/37) And they say: wherefore is not a sign sent down upon him from his Lord? Say thou: verily Allah is able to send down a sign, howbeit most of them know not.
Surah Al-An'am