Al-Mu'minun 23:109

Innahu kana fareequn min AAibadeeyaqooloona rabbana amanna faghfirlana warhamna waanta khayru arrahimeen

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.'

There was indeed a group of My servants who used to say, ‘Our Lord, we adhere to the (true) faith, so forgive us and have mercy upon us, and you are the best of all the merciful.’