Sahih Muslim 5501
صحيح مسلم#5501Sahihحَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا لَيْثٌ، ح وَحَدَّثَنَا ابْنُ رُمْحٍ، أَخْبَرَنَا اللَّيْثُ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنِ اشْتِمَالِ الصَّمَّاءِ وَالاِحْتِبَاءِ فِي ثَوْبٍ وَاحِدٍ وَأَنْ يَرْفَعَ الرَّجُلُ إِحْدَى رِجْلَيْهِ عَلَى الأُخْرَى وَهُوَ مُسْتَلْقٍ عَلَى ظَهْرِهِ .
Jabir reported that Allah's Messenger (ﷺ) forbade the wrapping of oneself completely leaving no room for the arm and supporting oneself when sitting with a single garment wrapped round one's knees and a person raising one of his feet and placing it on the other while lying on his back
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:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 37:116