Sunan Ibn Majah 757
سنن ابن ماجه#757Da'ifحَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ سُلَيْمَانَ بْنِ أَبِي الْجَوْنِ، حَدَّثَنَا مُحَمَّدُ بْنُ صَالِحٍ الْمَدَنِيُّ، حَدَّثَنَا مُسْلِمُ بْنُ أَبِي مَرْيَمَ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَنْ أَخْرَجَ أَذًى مِنَ الْمَسْجِدِ بَنَى اللَّهُ لَهُ بَيْتًا فِي الْجَنَّةِ " .
It was narrated that Abu Sa'eed Al-Khudri said:"The Messenger of Allah said: 'Whoever removes something harmful from the mosque, Allah will build for him a house in Paradise
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:
In-book reference: 4:23