(36) باب فِي الرَّجُلِ يَضَعُ إِحْدَى رِجْلَيْهِ عَلَى الأُخْرَى
'Abbad b. Tamim quoted his paternal uncle as saying that he had seen the Messenger of Allah(ﷺ) lying on his back in the mosque according to Qa'nabi's version) placing one foot over the other.
Reference: Sunan Abi Dawud 4866
In-book reference: Book 43, Hadith 94
English translation: Book 42, Hadith 4848