The Fasting Of Sayyidina Rasoolullah

Abdullah ibn Shaqiq said: "I asked 'A'isha (may Allah the Exalted be well pleased with her) about the fasting of Allah’s Messenger (Allah bless him and give him peace). She said: “He used to fast until we would say: ‘He has fasted,’ and he used to break fast until we would say: ‘He has broken fast.’” She also said: “Allah’s Messenger (Allah bless him and give him peace) did not fast for a whole month after arriving in Medina, with the exception of Ramadan.’

Humaid ibn Anas ibn Malik reported that he was asked about the fasting of the Prophet (Allah bless him and give him peace), so he said: "He used to fast during the month until we would assume that he did not intend to break fast during it, and he used to break fast until we would assume that he did not intend to fast during any of it. You would not wish to assume that he was performing the ritual prayer during the night, unless you saw him performing the ritual prayer, nor that he was sleeping, unless you saw him sleeping.”

Ibn Abbas said: "The Prophet (Allah bless him and give him peace) used to fast until we would say: “He does not intend to break fast [during the month],” and he used to break fast until we would say: “He does not intend to fast during it.” He did not fast for a whole month after arriving in Medina, with the exception of Ramadan.”