Sunan Abu Dawud
4865
Sahih+3

Jabir said:The Messenger of Allah(ﷺ) forbade that a man should lie placing(and according to Qutaibah’s version: “should raise”) one of his legs over the other. Qutaibah’s version adds: When he was lying on his back

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid