Musnad Ahmad 28:399

'Abd al-Razzaq narrated to us, 'Umar ibn Hawshab—a righteous man—informed us, 'Amr ibn Dinar informed me, from 'Ata', from a man from Hudhayl, who said: I saw 'Abdullah ibn 'Amr ibn al-'As, and his house was in the *Hill* (the area outside the sacred boundaries of Makkah), and his mosque was in the *Haram* (the sacred precinct). He said: While I was with him, he saw Umm Sa'id, the daughter of Abu Jahl, wearing a bow, and she was walking with the gait of a man. 'Abdullah said: "Who is this?" The Hudhayli said: I said: "This is Umm Sa'id, the daughter of Abu Jahl." He said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, say: "He is not of us, the woman who imitates men, nor the man who imitates women."