“I heard the Messenger of Allah (ﷺ) say: ‘(Prophet) Nuh fasted for a lifetime, except for the Day of Fitr and the Day of Adha.’”
Sunan Ibn Majah Book 7, Hadith 77
← Previous Hadith “Umar bin Khattab said: ‘O Messenger of Allah! What about a person who fasts two days and does not fast one day?’ He said: ‘Is anyone able to do that?’ He said: ‘O Messenger of Allah! What about a person who fasts one day and not the next?’ He said: ‘That is the fast of Dawud.’ He said: ‘What about a man who fasts one day and does not fast the next two days?’ He said: ‘I wish that I were given the ability to do that.’”

Sunan Ibn Majah Book 7, Hadith 76 Next Hadith → “Whoever fasts six days after the Fitr will have completed the year, for whoever does a good deed will have the reward of ten like it.”

Sunan Ibn Majah Book 7, Hadith 78