Quran 12:106 from Surah Yusuf on Divine Marvels.
وَمَا يُؤۡمِنُ أَكۡثَرُهُم بِٱللَّهِ إِلَّا وَهُم مُّشۡرِكُونَ
English translation: And not believe most of them in Allah except while they associate partners with Him
Transliteration: wama yu'minu aktharuhum bil-lahi illa wahum mush'rikuna