"Indeed, this Quran guides to that which is most suitable and gives good tidings to the believers.."

Indeed, this Quran guides to that which is most suitable and gives good tidings to the believers who do righteous deeds that they will have a great reward
Quran ( 17 : 9 )
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Holy_Books_In_The_Quran
https://noorinternational.net/articles/Holy-Books-In-The_Quran