Quran 21:68 from Surah Al-Anbiyaa on Divine Marvels.
قَالُواْ حَرِّقُوهُ وَٱنصُرُوٓاْ ءَالِهَتَكُمۡ إِن كُنتُمۡ فَٰعِلِينَ
English translation: They said Burn him and support your gods if you are doers
Transliteration: qalu harriquhu wa-unsuru alihatakum in kuntum fa'ilina