Yahya related to me from Malik from Ibn Shihab from Said ibn al-Musayyab from Abu Hurayra that some one asked the Messenger of Allah,may Allah bless him and grant him peace about praying in one garment.The Messenger of Allah, may Allah bless him and grant him peace, said,"Do you all have two garments?"
App reference: Book 8, Hadith 31
USC-MSA web (English) reference: Book 8, Hadith 31
Arabic reference: Book 8, Hadith 320