23:109
إِنَّهُۥ كَانَ فَرِيقٌ مِّنْ عِبَادِى يَقُولُونَ رَبَّنَآ ءَامَنَّا فَٱغْفِرْ لَنَا وَٱرْحَمْنَا وَأَنتَ خَيْرُ ٱلرَّٰحِمِينَ
innahu kāna farīqun min ʿibādī yaqūlūna rabbanā āmannā fa-igh'fir lanā wa-ir'ḥamnā wa-anta khayru l-rāḥimīna
Among My servants there were those who said, “Lord, We believe. Forgive us and have mercy on us: You are the most merciful of all.”
Verily there was a party of My slaves, who used to say: "Our Lord! We believe, so forgive us, and have mercy on us, for You are the Best of all who show mercy!"