Ubadah bin Tameem narrates from his uncle, who said: I saw the Messenger of Allah (peace and blessings be upon him) lying on his back in the mosque, with one of his legs placed over the other. Agreed upon.
Hadith Referenceمشكوة المصابيح / كتاب الآداب / 4708
Hadith Gradingالألبانی:مُتَّفق عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (6287) و مسلم (2100/75)»