Sayyiduna Anas (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) prayed in a single garment whose ends he had placed crosswise.
Abu Ya'la recorded it, and al-Bazzar recorded something similar; its narrators have been declared trustworthy.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2209