Jami` at-Tirmidhi, Book 48, Hadith 227 (In-Book) ⓘ
Abu Hurairah narrated that the Messenger of Allah said: “The Mufarridun have preceded.” They said: “And who are the Mufarridun, O Messenger of Allah?” He said: “Those who absorb themselves in the remembrance of Allah, and remembrance removed their heavy burdens from them, until they will come on the Day of Judgement being light (in weight of their burdens).”
وَحَدَّثَنَا أَبُو كُرَيْبٍ، مُحَمَّدُ بْنُ الْعَلاَءِ أَخْبَرَنَا أَبُو مُعَاوِيَةَ، عَنْ عُمَرَ بْنِ رَاشِدٍ، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " سَبَقَ الْمُفْرِدُونَ " . قَالُوا وَمَا الْمُفْرِدُونَ يَا رَسُولَ اللَّهِ قَالَ " الْمُسْتَهْتَرُونَ فِي ذِكْرِ اللَّهِ يَضَعُ الذِّكْرُ عَنْهُمْ أَثْقَالَهُمْ فَيَأْتُونَ يَوْمَ الْقِيَامَةِ خِفَافًا " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ .
also referenced under: Hadith 3596 (Reference) & Volume 6, Book 46, Hadith 3596 (DarusSalam)