It is narrated from Sayyiduna Anas bin Malik, may Allah be pleased with him, that sometimes the Messenger of Allah, peace and blessings be upon him, would begin to observe voluntary fasts continuously without a break, to the extent that we would say that this year he, peace and blessings be upon him, does not intend to leave any fast. But then he, peace and blessings be upon him, would start leaving off fasting with such continuity that we would say that this year he, peace and blessings be upon him, has not kept any fast. The fasts of the month of Sha'ban were the most beloved to him, peace and blessings be upon him.