It is narrated from Sayyiduna Umar bin Abi Salamah (may Allah be pleased with him) that he saw the Messenger of Allah (peace and blessings be upon him) praying in a single garment in the house of Sayyidah Umm Salamah (may Allah be pleased with her); he (peace and blessings be upon him) had wrapped himself in it and placed its two ends over both his shoulders.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8253