Surah Al-A'raf (The Heights), Verse 70

قَالُوْۤا اَجِئْتَنَا لِنَعْبُدَ اللّٰهَ وَحْدَهٗ وَنَذَرَ مَا كَانَ یَعْبُدُ اٰبَآؤُنَا فَاْتِنَا بِمَا تَعِدُنَاۤ اِنْ كُنْتَ مِنَ الصّٰدِقِیْنَ ۟

Qaalooo aji'tanaa lina'budal laaha wahdahoo wa nazara maa kaana ya'budu aabaaa'unaa fa'tinaa bimaa ta'idunaaa in kunta minas saadiqeen

“They said: "Comest thou to us, that we may worship Allah alone, and give up the cult of our fathers? bring us what thou threatenest us with, if so be that thou tellest the truth!"”

Quran 7:70 (Yusuf Ali Translation)