Sunan Ibn Majah 1715
سنن ابن ماجه#1715Sahihحَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا بَقِيَّةُ، حَدَّثَنَا صَدَقَةُ بْنُ خَالِدٍ، حَدَّثَنَا يَحْيَى بْنُ الْحَارِثِ الذِّمَارِيُّ، قَالَ سَمِعْتُ أَبَا أَسْمَاءَ الرَّحَبِيَّ، عَنْ ثَوْبَانَ، مَوْلَى رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ عَنْ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ أَنَّهُ قَالَ: " مَنْ صَامَ سِتَّةَ أَيَّامٍ بَعْدَ الْفِطْرِ كَانَ تَمَامَ السَّنَةِ {مَنْ جَاءَ بِالْحَسَنَةِ فَلَهُ عَشْرُ أَمْثَالِهَا} " .
It was narrated from Thawban, the freed slave of the Messenger of Allah (ﷺ), that the Messenger of Allah (ﷺ) said:“Whoever fasts six days after the Fitr will have completed the year, for whoever does a good deed will have the reward of ten like it.”
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: 7:78