Surah Hud (Hud), Verse 14

فَاِلَّمْ یَسْتَجِیْبُوْا لَكُمْ فَاعْلَمُوْۤا اَنَّمَاۤ اُنْزِلَ بِعِلْمِ اللّٰهِ وَاَنْ لَّاۤ اِلٰهَ اِلَّا هُوَ فَهَلْ اَنْتُمْ مُّسْلِمُوْنَ ۟

Fa il lam yastajeeboo lakum fa'lamooo annamaaa unzilla bi'ilmil laahi wa al laaa ilaaha illaa Huwa fahal antum muslimoon

“"If then they (your false gods) answer not your (call), know ye that this revelation is sent down (replete) with the knowledge of Allah, and that there is no god but He! will ye even then submit (to Islam)?"”

Quran 11:14 (Yusuf Ali Translation)