Tirmidhi

Commentary:
Note:
(There is some discussion regarding Isma'il al-Suddi in the chain of narration, but due to corroborating reports, this hadith is sahih li-ghayrihi [authentic due to supporting narrations]).

Hadith Commentary: Benefits and Issues: From the hadith of Aisha (radi Allahu anha), it is established that if a person misses any fasts of Ramadan due to some reason—illness, travel, compulsion, or an excuse such as menstruation (hayd) and postnatal bleeding (nifas), pregnancy, etc.—then it is not necessary to make up those fasts immediately after Ramadan. Before the arrival of the next Ramadan, whenever one wishes, those fasts can be made up. The noble wives (azwaj mutahharat, radi Allahu anhunna ajma'in), since they were always prepared to serve the Messenger of Allah (sallallahu alayhi wa sallam), would make up their missed fasts in the month of Sha'ban, because in this month the Prophet (sallallahu alayhi wa sallam) would fast abundantly. This is also the position of the four Imams (a’immah arba‘ah).