Hadith.1950 - Al-'Ala narrated from Muhammad ibn Muslim, from Abu Ja'far (as), who said
"I heard him say:
'A pregnant woman in her late term and a nursing woman with little milk are not at fault if they break their fast during the Month of Ramadan because they are unable to fast. They must each give a mudd (a specific measure) of food as charity for every day they break their fast, and they must make up each day they missed after Month of Ramadan.'"