Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:8290 – Abū ʿĀmir > ʿAlī / Ibn al-Mubārak > Yaḥyá / Ibn Abū Kathīr > Ibn Yaʿqūb > Abū Hurayrah

[Machine] The Messenger of Allah ﷺ said, "The foremost ones are those who remember Allah alone."  

أحمد:٨٢٩٠ – حَدَّثَنَا أَبُو عَامِرٍ حَدَّثَنَا عَلِيٌّ يَعْنِي ابْنَ الْمُبَارَكِ عَنْ يَحْيَى يَعْنِي ابْنَ أَبِي كَثِيرٍ عَنِ ابْنِ يَعْقُوبَ قَالَ سَمِعْتُ أَبَا هُرَيْرَةَ يَقُولُ

قَالَ رَسُولُ اللهِ ﷺ سَبَقَ الْمُفَرِّدُونَ قَالُوا يَا رَسُولَ اللهِ وَمَنِ الْمُفَرِّدُونَ؟ قَالَ الَّذِينَيُهْتَرُونَ فِي ذِكْرِ اللهِ  

See similar narrations below:

Collected by Tirmidhī, Ḥākim
tirmidhi:3596 – Abū Kurayb Muḥammad b. al-ʿAlāʾ > Abū Muʿāwiyah > ʿUmar b. Rāshid > Yaḥyá b. Abū Kathīr > Abū Salamah > Abū Hurayrah

“The Mufarridun have preceded.” They said: “And who are the Mufarridun, O Messenger of Allah ﷺ?” 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).”  

Abū ʿĪsá said that this Ḥadīth is Ḥasan-Gharīb.
الترمذي:٣٥٩٦ – 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 ﷺ 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
hakim:1823 – Abū al-Ḥusayn Aḥmad b. ʿUthmān al-Muqriʾ> al-ʿAbbās b. Muḥammad al-Dūrī > Abū ʿĀmir al-ʿAqadī > ʿAlī b. al-Mubārak > Yaḥyá b. Abū Kathīr > ʿAbd al-Raḥman b. Yaʿqūb a freed slave of al-Ḥuraqah > Abū Hurayrah

[Machine] The Messenger of Allah ﷺ said, "The ones who excel are the Mufridoon." They asked, "O Messenger of Allah, who are the Mufridoon?" He said, "Those who constantly remember Allah."  

الحاكم:١٨٢٣ – حَدَّثَنَا أَبُو الْحُسَيْنِ أَحْمَدُ بْنُ عُثْمَانَ الْمُقْرِئُ بِبَغْدَادَ ثنا الْعَبَّاسُ بْنُ مُحَمَّدٍ الدُّورِيُّ ثنا أَبُو عَامِرٍ الْعَقَدِيُّ ثنا عَلِيُّ بْنُ الْمُبَارَكِ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَعْقُوبَ مَوْلَى الْحُرَقَةِ قَالَ سَمِعْتُ أَبَا هُرَيْرَةَ يَقُولُ

قَالَ رَسُولُ اللَّهِ ﷺ «سَبَقَ الْمُفَرِّدُونَ» قَالُوا يَا رَسُولَ اللَّهِ وَمَا الْمُفَرِّدُونَ؟ قَالَ «الَّذِينَ يُهْتَرُونَ فِي ذِكْرِ اللَّهِ»  

هَذَا حَدِيثٌ صَحِيحٌ عَلَى شَرْطِ الشَّيْخَيْنِ وَلَمْ يُخَرِّجَاهُ