Musnad Ahmad 1167:20

Yahya ibn Sa'id narrated to us, from Hisham, who said: Fatima bint al-Mundhir narrated to me; and Waki' said: Hisham narrated to us, from Fatima, from Asma bint Abi Bakr, that a woman from the Ansar said to the Messenger of Allah (may Allah bless him and grant him peace): "I have a young daughter who is a bride, and her hair has fallen out. Is there any sin upon me if I attach hair to it?" He said: "Allah has cursed the one who attaches hair and the one who has it attached."