Surah Al-Muminoon, Verse 109
إِنَّهُۥ كَانَ فَرِيقٌۭ مِّنْ عِبَادِى يَقُولُونَ رَبَّنَآ ءَامَنَّا فَٱغْفِرْ لَنَا وَٱرْحَمْنَا وَأَنتَ خَيْرُ ٱلرَّٰحِمِينَ
Translation — Sahih International
Indeed, there was a party of My servants who said, 'Our Lord, we have believed, so forgive us and have mercy upon us, and You are the best of the merciful.'
Source
Kur'an-ı Kerim, Mü'minûn Suresi 23:109
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/23-suresi-109-ayet