(103) باب الاِسْتِلْقَاءِ وَوَضْعِ الرِّجْلِ عَلَى الأُخْرَى
Narrated `Abbad bin Tamim's uncle:
I saw the Prophet (ﷺ) lying-down in the mosque and placing one leg on the other.
Reference: Sahih al-Bukhari 5969
In-book reference: Book 77, Hadith 185
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 72, Hadith 852