رَبَّنَا آمَنَّا فَاغْفِرْ لَنَا وَارْحَمْنَا وَأَنتَ خَيْرُ الرَّاحِمِينَ

Rabbanaaa aamannaa faghfir lanaa warhamnaa wa Anta Khairur-Raahimeen.

Our Lord, we have believed, so forgive us and have mercy upon us, and You are the best of the merciful.'

Reference: Surah Muminun 23:109