Musnad Ahmad 1153:1007

'Affan narrated to us, Hammad ibn Salamah narrated to us, he said: Hisham informed us, from 'Urwah, from 'Aishah: "That the Messenger of Allah (peace and blessings of Allah be upon him) ordered the killing of the *dhu al-tufyatayn* (the one with two stripes), for it seeks out the eyesight and affects the pregnancy."