Muwatta Malik:Fasting:Hadith 656
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عَائِشَةَ، وَحَفْصَةَ، زَوْجَىِ النَّبِيِّ صلى الله عليه وسلم بِمِثْلِ ذَلِكَ ‏.‏

Yahya related to me from Malik from Ibn Shihab that A’isha and Hafsa, the wives of the Prophet, may Allah bless him and grant him peace, also said that.