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
hakim:5458 – Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Aḥmad b. ʿĪsá al-Lakhmī > Bishr > ʿAmr b. Abū Salamah > Ṣadaqah b. ʿAbdullāh > Naṣr b. ʿAlqamah > Akhīh > Ibn ʿĀʾidh > Jubayr b. Nufayr

[Machine] Abu Dharr used to say, "I indeed have witnessed that a quarter of Islam had embraced Islam before me, and they were none other than the Prophet ﷺ, Abu Bakr, and Bilal."  

الحاكم:٥٤٥٨ – حَدَّثَنَا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثَنَا أَحْمَدُ بْنُ عِيسَى اللَّخْمِيُّ ثَنَا بِشْرٌ ثَنَا عَمْرُو بْنُ أَبِي سَلَمَةَ ثَنَا صَدَقَةُ بْنُ عَبْدِ اللَّهِ عَنْ نَصْرِ بْنِ عَلْقَمَةَ عَنْ أَخِيهِ عَنِ ابْنِ عَائِذٍ عَنْ جُبَيْرِ بْنِ نُفَيْرٍ قَالَ

كَانَ أَبُو ذَرٍّ يَقُولُ «لَقَدْ رَأَيْتُنِي رُبْعَ الْإِسْلَامِ لَمْ يُسْلِمْ قَبْلِي إِلَّا النَّبِيُّ ﷺ وَأَبُو بَكْرٍ وَبِلَالٌ»  

هَذَا حَدِيثٌ صَحِيحُ الْإِسْنَادِ وَلَمْ يُخَرِّجَاهُ صحيح

See similar narrations below:

Collected by Ṭabarānī, Suyūṭī
tabarani:1618 – ʿAbdullāh b. Saʿīd b. Abū Maryam > ʿAmr b. Abū Salamah > Ṣadaqah b. ʿAbdullāh > Naṣr b. ʿAlqamah > Akhīh > Ibn ʿĀʾidh > Jubayr b. Nufayr > Kān

[Machine] Abu Dhar used to say, "I have seen myself embrace Islam, and before me no one accepted it except the Prophet ﷺ , Abu Bakr, and Bilal."  

الطبراني:١٦١٨ – حَدَّثَنَا عَبْدُ اللهِ بْنُ سَعِيدِ بْنِ أَبِي مَرْيَمَ ثنا عَمْرُو بْنُ أَبِي سَلَمَةَ عَنْ صَدَقَةَ بْنِ عَبْدِ اللهِ عَنْ نَصْرِ بْنِ عَلْقَمَةَ عَنْ أَخِيهِ عَنِ ابْنِ عَائِذٍ عَنْ جُبَيْرِ بْنِ نُفَيْرٍ قَالَ

كَانَ أَبُو ذَرٍّ يَقُولُ «لَقَدْ رَأَيْتُنِي رَبْعَ الْإِسْلَامِ لَمْ يُسْلِمْ قَبْلِي إِلَّا النَّبِيُّ ﷺ وَأَبُو بَكْرٍ وَبِلَالٌ ؓ »  

suyuti:622-68b – Abiá Dhar
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السيوطي:٦٢٢-٦٨b –

"عَنْ أَبِى ذَرٍّ قَالَ: رَأيْتَنِى رَابِع الإسْلَامِ، لَمْ يُسْلِم قَبْلِى إلَّا النَّبِىُّ ﷺ وأَبو بَكْرٍ، وَبِلَال".  

أبو نعيم