Musannaf Ibn Abi Shayba 35:32

Ibn Idris narrated to us, from Husayn, from Hilal ibn Yasaf, who said: Hilal ibn Abi al-Ja’d took my hand and made me stand before an old man in al-Raqqah who was called Wabisa ibn Ma’bad. He said: A man prayed behind the row alone, so the Prophet, may Allah bless him and grant him peace, ordered him to repeat [the prayer].