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
suyuti:23581a –
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السيوطي:٢٣٥٨١a –

"منْ أَرْبَى الرِّبَا: اسْتِطَالةُ الْمرْءِ فِي عِرضِ الْمُسْلِمِ بِغَيرِ حَقٍّ" .  

See similar narrations below:

Collected by Abū Dāwūd, Bayhaqī, Suyūṭī
abudawud:4876 – Muḥammad b. ʿAwf > Abū al-Yamān > Shuʿayb > ʿAbdullāh b. Abū Ḥusayn > Nawfal b. Musāḥiq > Saʿīd b. Zayd

The Prophet ﷺ said: The most prevalent kind of usury is going to lengths in talking unjustly against a Muslim's honour.  

أبو داود:٤٨٧٦ – حَدَّثَنَا مُحَمَّدُ بْنُ عَوْفٍ حَدَّثَنَا أَبُو الْيَمَانِ حَدَّثَنَا شُعَيْبٌ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ أَبِي حُسَيْنٍ حَدَّثَنَا نَوْفَلُ بْنُ مُسَاحِقٍ عَنْ سَعِيدِ بْنِ زَيْدٍ

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ مِنْ أَرْبَى الرِّبَا الاِسْتِطَالَةَ فِي عِرْضِ الْمُسْلِمِ بِغَيْرِ حَقٍّ  

bayhaqi:21127 – Abū al-Ḥusayn b. al-Faḍl al-Qaṭṭān> ʿAbdullāh b. Jaʿfar > Yaʿqūb b. Sufyān > Abū al-Yamān > Shuʿayb b. Abū Ḥamzah > ʿAbdullāh b. Abū Ḥusayn > Nawfal b. Musāḥiq > Saʿīd b. Zayd

The Prophet ﷺ said: The most prevalent kind of usury is going to lengths in talking unjustly against a Muslim's honour. (Using translation from Abū Dāʾūd 4876)   

البيهقي:٢١١٢٧ – أَخْبَرَنَا أَبُو الْحُسَيْنِ بْنُ الْفَضْلِ الْقَطَّانُ بِبَغْدَادَ أنبأ عَبْدُ اللهِ بْنُ جَعْفَرٍ ثنا يَعْقُوبُ بْنُ سُفْيَانَ ثنا أَبُو الْيَمَانِ أَخْبَرَنِي شُعَيْبُ بْنُ أَبِي حَمْزَةَ عَنْ عَبْدِ اللهِ بْنِ أَبِي حُسَيْنٍ حَدَّثَنِي نَوْفَلُ بْنُ مُسَاحِقٍ عَنْ سَعِيدِ بْنِ زَيْدٍ

عَنِ النَّبِيِّ ﷺ أَنَّهُ قَالَ مِنْ أَرْبَى الرِّبَا الِاسْتِطَالَةُ فِي عِرْضِ الْمُسْلِمِ بِغَيْرِ حَقٍّ