used to commemorate his birthday, thanking his Lord for His great kindness to him. He would express this commemoration by fasting, as we are told in a hadith narrated by Imam Muslim. The methods by which his birthday may be celebrated vary widely, but the objective is the same:
whether in fasting,
giving food to the poor,
gathering for the remembrance (dhikr) of Allah or
calling down blessings upon His Messenger, and
listening to the story of his virtues and mighty achievements.