ʿAbdullāh b. Al-Zubayr said, “I have never seen two women more generous than ‘Ā`ishah and Asmā`. They had different ways of being generous. As for ‘Ā`ishah, she used to gather things, until she had a collection, then she would distribute it. As for Asmā`, she would never keep anything until the next day.”
Al-Bukhārī, Al-Adab Al-Mufrad. Shaykh Al-Albānī grades its chain of transmission ṣaḥīḥ in Ṣaḥīḥ Al-Adab Al-Mufrad Vol.1 p123.