Sunan Ibn Majah 1721
سنن ابن ماجه#1721Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَحْيَى بْنُ يَعْلَى التَّيْمِيُّ، عَنْ عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ، عَنْ قَزَعَةَ، عَنْ أَبِي سَعِيدٍ، عَنْ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ أَنَّهُ نَهَى عَنْ صَوْمِ يَوْمِ الْفِطْرِ وَيَوْمِ الأَضْحَى .
It was narrated from Abu Sa’eed that:The Messenger of Allah (ﷺ) forbade fasting on the Day of Fitr and the Day of Adha
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:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih - Bukhari And Muslim
In-book reference: 7:84