Kur’an 13:28 — sura Ar-Ra'd, 28. ajet

ٱلَّذِينَ ءَامَنُواْ وَتَطۡمَئِنُّ قُلُوبُهُم بِذِكۡرِ ٱللَّهِۗ أَلَا بِذِكۡرِ ٱللَّهِ تَطۡمَئِنُّ ٱلۡقُلُوبُ

one koji vjeruju i čija se srca, kad se Allah spomene, smiruju – a srca se doista, kad se Allah spomene, smiruju!"

Those who have believed and whose hearts are assured by the remembrance of Allah. Unquestionably, by the remembrance of Allah hearts are assured