كتاب الصيام
18  
Fasting

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.

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عَائِشَةَ، وَحَفْصَةَ، زَوْجَىِ النَّبِيِّ صلى الله عليه وسلم بِمِثْلِ ذَلِكَ ‏.‏
USC-MSA web (English) reference : Book 18, Hadith 5
Arabic reference : Book 18, Hadith 638