"I did not see Allah’s Messenger (Allah bless him and give him peace) fast in any month more than his fasting for Allah’s sake in Sha'ban. He used to keep fast through all but a little of Sha'ban; no indeed, he used to keep fast through all of it!”
"Allah’s Messenger (Allah bless him and give him peace) used to fast three days at the beginning of every month, and he would seldom break fast on Friday, the Day of the Congregation .”
"The Prophet (Allah bless him and give him peace) used to fast until we would say: “He does not intend to break fast ,” 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.”