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
ibnmajah:2274 – ʿAbdullāh b. Saʿīd > ʿAbdullāh b. Idrīs > Abū Maʿshar > Saʿīd al-Maqburī > Abū Hurayrah

"There are seventy degrees of usury, the least of which is equivalent to a man having intercourse with his mother."  

ابن ماجة:٢٢٧٤ – حَدَّثَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ عَنْ أَبِي مَعْشَرٍ عَنْ سَعِيدٍ الْمَقْبُرِيِّ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ الرِّبَا سَبْعُونَ حُوبًا أَيْسَرُهَا أَنْ يَنْكِحَ الرَّجُلُ أُمَّهُ  

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Collected by Suyūṭī
suyuti:10916a –
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السيوطي:١٠٩١٦a –

"الرِّبَا سَبْعُونَ حَوْبًا، وأَيسَرُهَا كَنِكَاحِ الرَّجُلِ أُمَّهُ، وإنَّ أَرْبَى الرِّبَا عِرْضُ الرَّجُلِ المُسْلِمِ".  

ابن أَبي الدنيا في ذم الغيبة وابن جرير عن أَبي هريرة