And Abu Bakr ibn Abi Shaybah narrated to us, saying: Yazid ibn Harun narrated to us, from al-Jurayri, from Abu al-'Ala', from Mutarrif, from 'Imran ibn Husayn — may Allah be pleased with him — that the Prophet, peace and blessings be upon him, said to a man: "Did you fast anything from the middle days of this month?" He said: "No." So the Messenger of Allah, peace and blessings be upon him, said: "Then when you have finished fasting Ramadan, fast two days in its place."