It is narrated from Sayyiduna Umar bin Abi Salamah through two different chains that I saw the Prophet (peace be upon him) in the house of Sayyidah Umm Salamah, praying in a single garment, with both its ends thrown over his shoulders.
Hadith Referenceمسند احمد / مسند المدنيين رضي الله عنهم اجمعين / 16329