Muwatta Malik:Zakat:Hadith 602
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْقَاسِمِ، عَنْ أَبِيهِ، أَنَّهُ قَالَ كَانَتْ عَائِشَةُ تَلِينِي وَأَخًا لِي يَتِيمَيْنِ فِي حَجْرِهَا فَكَانَتْ تُخْرِجُ مِنْ أَمْوَالِنَا الزَّكَاةَ ‏.‏

Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasim that his father said, ”A’isha used to look after me and one of my brothers – we were orphans – in her house, and she would take the zakat from our property.”