Sunan an-Nasa'i 2029
سنن النسائي#2029Sahihأَخْبَرَنَا عِمْرَانُ بْنُ مُوسَى، قَالَ حَدَّثَنَا عَبْدُ الْوَارِثِ، قَالَ حَدَّثَنَا أَيُّوبُ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ : نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنْ تَجْصِيصِ الْقُبُورِ .
It was narrated that Jabir said:"The Messenger of Allah 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:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 21:212