Quran 37:152 from Surah As-Saaffaat on Divine Marvels.
وَلَدَ ٱللَّهُ وَإِنَّهُمۡ لَكَٰذِبُونَ
English translation: Allah has begotten Allah has begotten and indeed, they surely (are) liars
Transliteration: walada al-lahu wa-innahum lakadhibuna