Musnad Abu Ya'la al-Mawsili 105:38

Yahya al-Humani narrated to us, Ya'la ibn al-Harith al-Muharibi narrated to us, from Ghaylan ibn Jami', from Iyas ibn Salamah, from Ibn 'Ammar, from 'Ammar: That the Prophet, may Allah bless him and grant him peace, prayed in a single garment, having wrapped himself in it.