Sunan Ibn Majah 264
سنن ابن ماجه#264Sahihحَدَّثَنَا أَحْمَدُ بْنُ الأَزْهَرِ، حَدَّثَنَا الْهَيْثَمُ بْنُ جَمِيلٍ، حَدَّثَنِي عُمَرُ بْنُ سُلَيْمٍ، حَدَّثَنَا يُوسُفُ بْنُ إِبْرَاهِيمَ، قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ، يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَقُولُ " مَنْ سُئِلَ عَنْ عِلْمٍ فَكَتَمَهُ أُلْجِمَ يَوْمَ الْقِيَامَةِ بِلِجَامٍ مِنْ نَارٍ " .
Yusuf bin Ibrahim said:'I heard Anas bin Malik say: "I heard the Messenger of Allah say: "Whoever is asked about knowledge and conceals it, it will be bridled on the Day of Resurrection with reins of fire
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: