Sunan Ibn Majah 240
سنن ابن ماجه#240Hasanحَدَّثَنَا أَحْمَدُ بْنُ عِيسَى الْمِصْرِيُّ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، عَنْ يَحْيَى بْنِ أَيُّوبَ، عَنْ سَهْلِ بْنِ مُعَاذِ بْنِ أَنَسٍ، عَنْ أَبِيهِ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ قَالَ " مَنْ عَلَّمَ عِلْمًا فَلَهُ أَجْرُ مَنْ عَمِلَ بِهِ لاَ يَنْقُصُ مِنْ أَجْرِ الْعَامِلِ " .
Sahl bin Mu'adh bin Anas narrated from his father that:The Prophet said: "Whoever teaches some knowledge will have the reward of the one who acts upon it, without that detracting from his reward in the slightest
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: