Musannaf Ibn Abi Shayba 3:4208

Hafs narrated to us, from al-Taymi, from Abu Mijlaz, who said: It was said to Imran ibn Husayn that Samurah ibn Jundub says regarding the one who has fainted: "He makes up [the prayers] with every prayer, a similar one." Imran said: "It is not as is said; he makes them all up together."