Sayyidah Aisha (may Allah be pleased with her) narrates that we (the wives of the Messenger of Allah, peace and blessings be upon him) would miss the fasts of Ramadan due to illness, and could not make them up until the month of Sha’ban arrived. The Messenger of Allah (peace and blessings be upon him) did not fast in any month as much as he did in Sha’ban; leaving only a few days, he would fast almost the entire month of Sha’ban, rather, he would fast the whole of Sha’ban.