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. (PT)
App reference (PT): Book 8, Hadith 34 (PT)
USC-MSA web (English) reference: Book 8, Hadith 34 (PT)
Arabic reference (PT): Book 8, Hadith 323 (PT)