Sunan an-Nasa'i 5103
سنن النسائي#5103Sahihأَخْبَرَنِي زِيَادُ بْنُ أَيُّوبَ، قَالَ حَدَّثَنَا هُشَيْمٌ، قَالَ أَنْبَأَنَا حُصَيْنٌ، وَمُغِيرَةُ، وَابْنُ، عَوْنٍ عَنِ الشَّعْبِيِّ، عَنِ الْحَارِثِ، عَنْ عَلِيٍّ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم لَعَنَ آكِلَ الرِّبَا وَمُوكِلَهُ وَكَاتِبَهُ وَمَانِعَ الصَّدَقَةِ وَكَانَ يَنْهَى عَنِ النَّوْحِ . أَرْسَلَهُ ابْنُ عَوْنٍ وَعَطَاءُ بْنُ السَّائِبِ .
It was narrated from Husain, Mughirah, and Ibn 'Awn, from Ash-Sh'abi, from Al-Harith, from 'Ali, that:The Messenger of Allah [SAW] cursed the one who consumes Riba, the one who pays it, the one who writes it down, and the one who withholds Sadaqah (Zakah). And he used to forbid wailing (in mourning for the dead)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 48:64