Shayban ibn Farrukh narrated to us, Abd al-Warith narrated to us, from Yazid al-Rishk, who said: Mu'adha al-Adawiyya narrated to me that she asked Aisha, the wife of the Prophet, may God's peace and blessings be upon him: "Did the Messenger of God, may God's peace and blessings be upon him, fast three days of every month?" She said: "Yes." So I said to her: "From which days of the month did he fast?" She said: "He did not mind from which days of the month he fasted."