Musnad Ahmad 1153:1800

Isma'il narrated to us, Ayyub narrated to us, he said: I heard Al-Qasim ibn Muhammad narrating from Aisha, she said: "The Messenger of Allah (peace and blessings of Allah be upon him) used to send the sacrificial animals (hady), and I would twist their garlands with my own hands. Then he would not refrain from anything that a person in a state of ihram (who has not yet entered the state of ihram or has exited it) is not refrained from."