Sunan Ibn Majah 2509
سنن ابن ماجه#2509Sahihحَدَّثَنَا مُحَمَّدُ بْنُ مَيْمُونٍ الْمَكِّيُّ، وَهِشَامُ بْنُ عَمَّارٍ، قَالاَ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدٍ، وَأَبِي، سَلَمَةَ عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " فِي الرِّكَازِ الْخُمُسُ " .
It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:“One fifth is due on buried treasure.”
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
Zubair Ali ZaiSahih Muslim
In-book reference: 18:8