Sunan Ibn Majah 968
سنن ابن ماجه#968Mawdu'حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ، أَنْبَأَنَا حَفْصُ بْنُ غِيَاثٍ، عَنْ عَبْدِ اللَّهِ بْنِ سَعِيدٍ الْمَقْبُرِيِّ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " إِذَا تَثَاءَبَ أَحَدُكُمْ فَلْيَضَعْ يَدَهُ عَلَى فِيهِ، وَلاَ يَعْوِي، فَإِنَّ الشَّيْطَانَ يَضْحَكُ مِنْهُ " .
It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:“When anyone of you yawns, let him put his hand over his mouth and not make a sound, because Satan laughs at him.”
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: 5:166