Hadith on Remembrance: Whoever remembers Allah will have tranquility in his heart

Narrated Abu Hurairah: The Messenger of Allah, peace be upon him, said: “There are no people who remember Allah but that angels encompass them, mercy covers them, tranquility descends upon them, and Allah mentions them to those with Him.”

[Jami’ at-Tirmidi, Book 45, Number 3378]

أَبِي هُرَيْرَةَ وَأَبِي سَعِيدٍ الْخُدْرِيِّ أَنَّهُمَا شَهِدَا عَلَى رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ قَالَ مَا مِنْ قَوْمٍ يَذْكُرُونَ اللَّهَ إِلاَّ حَفَّتْ بِهِمُ الْمَلاَئِكَةُ وَغَشِيَتْهُمُ الرَّحْمَةُ وَنَزَلَتْ عَلَيْهِمُ السَّكِينَةُ وَذَكَرَهُمُ اللَّهُ فِيمَنْ عِنْدَهُ