Sahih Muslim 5868
صحيح مسلم#5868Sahihحَدَّثَنَا عَمْرٌو النَّاقِدُ، وَابْنُ أَبِي عُمَرَ، قَالاَ حَدَّثَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ تَقُولُوا كَرْمٌ . فَإِنَّ الْكَرْمَ قَلْبُ الْمُؤْمِنِ " .
Abu Huraira reported Allah's Messenger (ﷺ) as saying:Do not use the word karm (for wine) for worthy of respect is the heart of a believer
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:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 40:7