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