“I came to the Prophet (ﷺ) and said: ‘O
Prophet of
Allah, I am the man who came to you last year.’ He said:
‘Why do
I see your body so thin (and weak)?’ He said: ‘O Messenger of
Allah! I do not eat during the day; I only eat at night.’ He said:
‘Who commanded you to punish yourself?’ I said: ‘O Messenger of
Allah!
I am strong enough.’ He said: ‘Fast the month of patience*
and one day
after it.’ I said: ‘I am strong enough (to do more).’
He said: ‘Fast
the month of patience and two days after it.’ I
said: ‘I am strong
enough (to do more).’ He said: ‘Fast the
month of patience and three
days after it, and fast the sacred
months.’”
Sunan Ibn Majah Book 7, Hadith 104