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.
ahmad:246Yaḥyá > Ibn Abū ʿArūbah > Qatādah > Saʿīd b. al-Musayyib

The last thing to be revealed was the verse on riba, but the Messenger of Allah ﷺ passed away and did not discuss it with us. So give up riba and doubtful things.  

أحمد:٢٤٦حَدَّثَنَا يَحْيَى عَنِ ابْنِ أَبِي عَرُوبَةَ حَدَّثَنَا قَتَادَةُ عَنْ سَعِيدِ بْنِ الْمُسَيِّبِ

قَالَقَالَ عُمَرُ إِنَّ آخِرَ مَا نَزَلَ مِنَ الْقُرْآنِ آيَةُ الرِّبَا وَإِنَّ رَسُولَ اللهِ ﷺ قُبِضَ وَلَمْ يُفَسِّرْهَا فَدَعُوا الرِّبَا وَالرِّيبَةَ  


See similar narrations below:

Collected by Ibn Mājah, Aḥmad, Suyūṭī
ibnmajah:2276Naṣr b. ʿAlī al-Jahḍamī > Khālid b. al-Ḥārith > Saʿīd > Qatādah > Saʿīd b. al-Musayyab > ʿUmar b. al-Khaṭṭāb

"The last thing to be revealed was the Verse on usury but the Messenger of Allah ﷺ died before he had explained it to us. So give up usury (interest) and doubtful things."  

ابن ماجة:٢٢٧٦حَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ الْجَهْضَمِيُّ حَدَّثَنَا خَالِدُ بْنُ الْحَارِثِ حَدَّثَنَا سَعِيدٌ عَنْ قَتَادَةَ عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ عَنْ عُمَرَ بْنِ الْخَطَّابِ قَالَ

إِنَّ آخِرَ مَا نَزَلَتْ آيَةُ الرِّبَا وَإِنَّ رَسُولَ اللَّهِ ﷺ قُبِضَ وَلَمْ يُفَسِّرْهَا لَنَا فَدَعُوا الرِّبَا وَالرِّيبَةَ  

ahmad:350Ismāʿīl > Ibn Abū ʿArūbah > Qatādah > Ibn al-Musayyibiʾan ʿUmar

One of the last verses to be revealed was the verse on riba, and when the Messenger of Allah ﷺ died, he had not explained it. So avoid riba and any dubious matter.  

أحمد:٣٥٠حَدَّثَنَا إِسْمَاعِيلُ عَنِ ابْنِ أَبِي عَرُوبَةَ عَنْ قَتَادَةَ عَنِ ابْنِ الْمُسَيِّبِأَنَّ عُمَرَ قَالَ

إِنَّ مِنْ آخِرِ مَا نزِلَ آيَةُ الرِّبَا وَإِنَّ رَسُولَ اللهِ ﷺ تُوُفِّيَوَلَمْ يُفَسِّرْهَا فَدَعُوا الرِّبَا وَالرِّيبَةَ  

suyuti:2-19b
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السيوطي:٢-١٩b

"إِنَّ آخِرَ مَا نَزَلَ مِنَ الْقُرآنِ آيَةُ الرِّبَا، وَإِنَّ رَسُولَ اللهِ ﷺ قُبِضَ وَلَمْ يُفَسِّرْهَا لَنَا، فَدَعُوا الرِّبَا والرِّيبَةَ".  

ابن راهويه، [حم] أحمد [هـ] ابن ماجة وابن الضريس، وابن جرير، وابن المنذر، وابن مردويه