#11 Missed days

Book of Fasting

(40) Chapter: To make up for the missed days of fasting

Hadith 1950

Narrated `Aisha:

Sometimes I missed some days of Ramadan, but could not fast in lieu of them except in the month of Sha'ban." Said Yahya, a sub-narrator, "She used to be busy serving the Prophet (صلى الله عليه و سلم) ."