Musannaf Ibn Abi Shayba 1:1953

Yahya ibn Abi Bukayr narrated to us, he said: Shu'bah narrated to us, from Abu Bakr ibn Hafs, he said: I heard 'Urwah ibn al-Zubayr from 'Aishah, she said: "That I should cut off the tips of my fingers with a knife is more beloved to me than that I should wipe over them."