Musnad Abu Ya'la al-Mawsili 126:8

Surayj ibn Yunus narrated to us, Isma'il ibn Ja'far narrated to us, from 'Abdullah ibn 'Abd al-Rahman, from Anas ibn Malik, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The superiority of 'A'ishah over the women is like the superiority of tharid over the rest of the food."