Jami` at-Tirmidhi 2045
جامع الترمذي#2045Sahihحَدَّثَنَا سُوَيْدُ بْنُ نَصْرٍ، قال أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، عَنْ يُونُسَ بْنِ أَبِي إِسْحَاقَ، عَنْ مُجَاهِدٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنِ الدَّوَاءِ الْخَبِيثِ . قَالَ أَبُو عِيسَى يَعْنِي السُّمَّ .
Abu Hurairah narrated:"The Messenger of Allah (s.a.w) forbade from cures that are Khabith." [Abu 'Elsa said:] Meaning poison
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:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 28:10