Surah Ar-Rad Verse 28 - English Translation by Shabbir Ahmed
Surah Ar-Radٱلَّذِينَ ءَامَنُواْ وَتَطۡمَئِنُّ قُلُوبُهُم بِذِكۡرِ ٱللَّهِۗ أَلَا بِذِكۡرِ ٱللَّهِ تَطۡمَئِنُّ ٱلۡقُلُوبُ
Those who attain faith through reason, their hearts find rest in the practical remembrance of Allah, that is, in following His Commands. For, verily, remembering Allah by following His Commands ensures tranquility in the hearts