Jami` at-Tirmidhi 984
جامع الترمذي#984Da'ifحَدَّثَنَا مُحَمَّدُ بْنُ حُمَيْدٍ الرَّازِيُّ، حَدَّثَنَا حَكَّامُ بْنُ سَلْمٍ، وَهَارُونُ بْنُ الْمُغِيرَةِ، عَنْ عَنْبَسَةَ، عَنْ أَبِي حَمْزَةَ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِيَّاكُمْ وَالنَّعْىَ فَإِنَّ النَّعْىَ مِنْ عَمَلِ الْجَاهِلِيَّةِ " . قَالَ عَبْدُ اللَّهِ وَالنَّعْىُ أَذَانٌ بِالْمَيِّتِ . وَفِي الْبَابِ عَنْ حُذَيْفَةَ .
Abdullah narrated that:The Prophet said: "Beware of An-Na'i, for indeed announcing one's death is from the deeds of Jahliyyah
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:
In-book reference: 10:20