It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: None of you should walk wearing only one shoe, nor eat with his left hand, nor wrap his body in a single garment, nor sit with one knee raised, and when lying on his back, he should not place one leg over the other.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 14452