فصّلت — Fussilat Ayat 14
اِذْ جَاۤءَتْهُمُ الرُّسُلُ مِنْۢ بَيْنِ اَيْدِيْهِمْ وَمِنْ خَلْفِهِمْ اَلَّا تَعْبُدُوْٓا اِلَّا اللّٰهَ ۗقَالُوْا لَوْ شَاۤءَ رَبُّنَا لَاَنْزَلَ مَلٰۤىِٕكَةً فَاِنَّا بِمَآ اُرْسِلْتُمْ بِهٖ كٰفِرُوْنَ
Iż jā'athumur-rusulu mim baini aidīhim wa min khalfihim allā ta‘budū illallāh(a), qālū lau syā'a rabbunā la'anzala malā'ikatan fa'innā bimā ursiltum bihī kāfirūn(a).
"[That occurred] when the messengers had come to them before them and after them, [saying], "Worship not except Allah." They said, "If our Lord had willed, He would have sent down the angels, so indeed we, in that with which you have been sent, are disbelievers.""