Sunan Ibn Majah 136
سنن ابن ماجه#136Sahihحَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا يَحْيَى بْنُ آدَمَ، حَدَّثَنَا إِسْرَائِيلُ، عَنْ أَبِي إِسْحَاقَ، عَنْ صِلَةَ بْنِ زُفَرَ، عَنْ عَبْدِ اللَّهِ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ لأَبِي عُبَيْدَةَ بْنِ الْجَرَّاحِ " هَذَا أَمِينُ هَذِهِ الأُمَّةِ " .
It was narrated from 'Abdullah that:The Messenger of Allah said to Abu 'Ubaidah bin Jarrah: "This is the trustworthy man of this Ummah
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