Sunan Ibn Majah 1562
سنن ابن ماجه#1562Sahihحَدَّثَنَا أَزْهَرُ بْنُ مَرْوَانَ، وَمُحَمَّدُ بْنُ زِيَادٍ، قَالاَ حَدَّثَنَا عَبْدُ الْوَارِثِ، عَنْ أَيُّوبَ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ نَهَى رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ عَنْ تَقْصِيصِ الْقُبُورِ .
It was narrated that Jabir said:“The Messenger of Allah (ﷺ) forbade plastering over graves.”
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 Muslim
In-book reference: 6:130