Quran 68:41 from Surah Al-Qalam on Divine Marvels.
أَمۡ لَهُمۡ شُرَكَآءُ فَلۡيَأۡتُواْ بِشُرَكَآئِهِمۡ إِن كَانُواْ صَٰدِقِينَ
English translation: Or (do) they have partners Then let them bring their partners if they are truthful
Transliteration: am lahum shurakau falyatu bishurakaihim in kanu sadiqina