Yahya related to me from Malik from Rabia ibn Abi Abd ar-Rahmanthat Muhammad ibn Amr ibn Hazm used to pray in a single long shirt. (ES)
App reference (ES): Book 8, Hadith 34 (ES)
USC-MSA web (English) reference: Book 8, Hadith 34 (ES)
Arabic reference (ES): Book 8, Hadith 323 (ES)