الانعام — Al-An'am Ayat 8
وَقَالُوْا لَوْلَآ اُنْزِلَ عَلَيْهِ مَلَكٌ ۗوَلَوْ اَنْزَلْنَا مَلَكًا لَّقُضِيَ الْاَمْرُ ثُمَّ لَا يُنْظَرُوْنَ
Wa qālū lau lā unzila ‘alaihi malak(un), wa lau anzalnā malakal laquḍiyal-amru ṡumma lā yunẓarūn(a).
"And they say, "Why was there not sent down to him an angel?" But if We had sent down an angel, the matter would have been decided; then they would not be reprieved."