Sunan an-Nasa'i 122
سنن النسائي#122Sahihأَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، - وَهُوَ ابْنُ جَعْفَرٍ - عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ أَبِي النَّضْرِ، عَنْ أَبِي سَلَمَةَ، عَنْ سَعْدِ بْنِ أَبِي وَقَّاصٍ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي الْمَسْحِ عَلَى الْخُفَّيْنِ أَنَّهُ لاَ بَأْسَ بِهِ .
It was narrated from Sa'd bin Abi Waqqas, from the Messenger of Allah (ﷺ), with regard to wiping over the Khuffs; "There is nothing wrong with it
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 Isnaad
Al-AlbaniSahih Isnaad
Zubair Ali ZaiIsnaad Sahih
In-book reference: 1:122