Narrated Aishah, wife of Prophet صلی اللہ علیہ وسلم: The Messenger of Allah صلی اللہ علیہ وسلم used to fast to such an extent that we thought that he would never break his fast, and he would go without fasting to such an extent that we thought he would never fast. I never saw the Messenger of Allah صلی اللہ علیہ وسلم fast a complete month except in Ramadan, and I never saw his fast more in any month than in Sha'ban.