(a) Ikrimah narrates: I heard Abu Hurayrah (may Allah be pleased with him) say that the Messenger of Allah (peace and blessings be upon him) said: "Whoever prays in a single garment should place the two ends of that garment over his shoulders."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3287