Sunan an-Nasa'i 5092
سنن النسائي#5092Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا خَالِدٌ، عَنْ هِشَامٍ، قَالَ حَدَّثَنَا قَتَادَةُ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، أَنَّ مُعَاوِيَةَ، قَالَ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنِ الزُّورِ .
It was narrated from Sa'eed bin Al-Musayyab that Mu'awiyah said:"The Messenger of Allah [SAW] forbade giving a false impression
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:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 48:53