Musannaf Ibn Abi Shayba 3:818

Muhammad ibn ‘Amr al-Aslami narrated to us, he said: al-Dahhak ibn ‘Uthman informed us, from Habib, the freed slave of ‘Urwah, he said: I heard Asma bint Abi Bakr saying: I saw my father praying in a single garment, while his [other] clothes were placed aside. So he said: "O my daughter, the last prayer that the Messenger of Allah (may Allah bless him and grant him peace) prayed behind me was in a single garment."