Sunan Ibn Majah 1757
سنن ابن ماجه#1757Da'ifحَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا عَبْثَرٌ، عَنْ أَشْعَثَ، عَنْ مُحَمَّدِ بْنِ سِيرِينَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَنْ مَاتَ وَعَلَيْهِ صِيَامُ شَهْرٍ فَلْيُطْعَمْ عَنْهُ مَكَانَ كُلِّ يَوْمٍ مِسْكِينٌ " .
It was narrated from Ibn ‘Umar that the Messenger of Allah (ﷺ) said:‘Whoever dies owing the fasts of a month, one poor person should be fed on his behalf for each day.”
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-AlbaniDaif
Muhammad Fouad Abd al-BaqiDaif
Zubair Ali ZaiDaif
In-book reference: 7:120