الَّذِيۡنَ اٰمَنُوۡا وَتَطۡمَٮِٕنُّ قُلُوۡبُهُمۡ بِذِكۡرِ اللّٰهِؕ اَلَا بِذِكۡرِ اللّٰهِ تَطۡمَٮِٕنُّ الۡقُلُوۡبُؕ
Those who believe and their hearts become calm and contented with the remembrance of Allah — know that it is the remembrance of Allah alone that brings calm to the hearts.