Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bukhari:1996Lī Muḥammad b. al-Muthanná > Yaḥyá > Hishām from my father

Hisham said, "My father said that 'Aishah (ra) used to observe Saum (fast) on the days of Mina." His (i.e., Hisham's) father also used to observe Saum on those days.  

البخاري:١٩٩٦وَقَالَ لِي مُحَمَّدُ بْنُ الْمُثَنَّى حَدَّثَنَا يَحْيَى عَنْ هِشَامٍ قَالَ

أَخْبَرَنِي أَبِي كَانَتْ عَائِشَةُ ؓ تَصُومُ أَيَّامَ مِنًى وَكَانَ أَبُوهَا يَصُومُهَا