Quran 37:126 from Surah As-Saaffaat on Divine Marvels.
ٱللَّهَ رَبَّكُمۡ وَرَبَّ ءَابَآئِكُمُ ٱلۡأَوَّلِينَ
English translation: Allah your Lord and (the) Lord (of) your forefathers (of) your forefathers
Transliteration: al-laha rabbakum warabba abaikumu al-awalina